HomeSupplier Discoveryarrow-rightAuto, Motorcycle Parts & Accessoriesarrow-rightCooling Systemarrow-rightFrontier Factories & Companies
Filter
Category
More
Management Certification
More
R&D Capacity
Annual Revenue
More
No.of Employees
Province & Region
More
about frontier
  • Technological Innovation
  • Reliable Supply Chains
  • Substantial Manufacturing Capabilities

frontier400+ factories verified

Xiamen Fengyu Autoparts Co., Ltd.

30 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Ball Joint, Tie Rod End, Rack End, Pitman Arm, Center Link, Auto Parts, Idler Arm, Stabilizer Link, Control Arm, Brake Caliper
Country/Region:
Fujian, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Founded in 1997, Xiamen Fengyu Autoparts Co., Ltd. Has built a legacy of excellence in the automotive aftermarket (AM) industry over more than 30 years. Rooted in a commitment to precision engineering and quality craftsmanship, we have grown from a regional manufacturer to a globally recognized supplier, leveraging decades of expertise in automotive component development and production. Our operations align with the high standards established by our affiliated network, ensuring consistency in quality and reliability across all product lines.

Guangzhou Winway Auto Accessories Co., Limited

Main Products:
Auto Accessories, Front Bumper Guard, Roof Rack, Roll Bar, Car Mat, Snorkel, Side Step, Rain Shield, Fender Flare, Mud Guard
Country/Region:
Guangdong, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Winway Auto Accessories Co., Ltd is located in Foshan, China, are specialized in Grill Guard, Rear Guard, Side Bar, Roof Rack and other accessories in SUV and truck. With professional eyes, we can provide you our 4 key advantages compared to other companies which are good sevice, good quality, competitve price, on time delivery. Thus, welcome you to our team and make a long term friendly cooperation to meet win-win business.

FRONTIER TECH CO., LTD

10 yrs·5.0
Main Products:
Modular Data Center, Container Data Center, Server Rack, Precision Cooling, Monitoring System, Cable Tray System, Hot Aisle Containment, Cold Aisle Containment
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
We are Frontier Tech-Chinese leading Producer of ITC racks and industrial and outdoor enclosures; Complete solutions for data centers including systems of precision cooling, intelligent power distribution, monitoring systems, and cable management systems, hot aisle containment, cold aisle containment, aisle containment, fiber runner, wire mesh cable tray, steel cable tray, cable trunking, server rack, modular data center, smart data center and so on. Learn More, let's talk, Since 2010, Frontier Tech has been moving step by step toward the top of the market. We're a leader in supplying complete solutions for data centers. We supply our solutions to small businesses, large corporations as well as industrial customers.

Jiangmen Letus Auto Parts Co., Ltd

5.0
Main Products:
Transmission Gearbox, Crankshaft, Differential Assembly, Gear/Shaft, Cylinder Head, Oil Pan, Valve Cover, Synchronizer, Synchronizer Ring
Country/Region:
Guangdong, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Jiangmen Letus Auto Parts Co., Ltd is one of the leading auto spare parts supplier and exporter in China over 10 years, we have focused on good quality aftermarket auto parts, such as Chinese, Japanese, Korea car, light truck, European heavy truck manual transmission, transmission parts such as gear and shaft, synchronizer ring and synchronizer assembly, crankshaft and cylinder head, valve cover, oil pump, oil pan, clutch housing, differential assembly, and so on.

Anhui Changsheng Electromechanical Technology Co., Ltd

8 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Auto AC Compressor, Auto Parts
Country/Region:
Anhui, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Hefei Changsheng Mechanical&Electrical Technology Co. Ltd was established in 2010, located in Hefei National Technology Industry Development Zone, Anhui Province. The company specializes in the production of compressor valve plate, is an excellent supplier of automotive air conditioning compressors and air compressors in China. The company has passed IATF16949 quality system certification and GB/T 19001-2016/ISO 9001: 2015 quality management system, GB/T 28001-2011/OHSAS 18001: 2007 occupational health and safety management system, GB/T 24001-2016/ISO 14001: 2015 environmental management system certification; It has obtained 10 utility model patents and one national invention patents, which have been incorporated into the "industrial Enterprises above the scale" of the National Bureau of Statistics and belongs to the "medium-sized enterprises". As a member of the National Association of Refrigeration and Air Conditioning, he has been awarded the title of "Hefei High-tech Zone Technology Giant Cultivation Enterprise" and "Hefei City Innovative Enterprise", and has been awarded the title of "Safe Production Standardization Level III Enterprise (Machinery)" by the High-tech Zone.

XIAMEN AIDEZHOU AUTOMOBILE CO., LTD.

Main Products:
Car Floor Mat, Car Cargo Mat, Truck Mat, Van Mat, Bus Mat, Golf Cart Mat, Scooter Mat, Excavator Mat, Truck Bed Mat, Van Bed Mat
Country/Region:
Fujian, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Xiamen Aidezhou Automobile Co., Ltd founded in 2008 by General Manager Xu Xiaojin, Xiamen Longxingtai Plastic Products Co., Ltd. is a leading factory dedicated to designing, developing, and producing customized car mats.

Guangzhou MIPI Car Accessories Co., Ltd.

19 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Car Mat, Car Floor Mat, Car Trunk Mat, Front Storage Mat, Back Mat, Bucket Mat, Storage Mat
Country/Region:
Guangdong, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Welcome to Guangzhou MIPI Auto Supplies Co., Ltd., The factory is located in Huadu District, Guangzhou City. It focuses on the research and development and production of TPE car mats for special vehicles, and supply customers with complete services from development, design, mold making to production. We mainly deal in TPE car floor mat, TPE front and rear trunk mat, seat back mat and matching car carpets, and have comprehensive service capabilities for injection molded TPE and blister TPE floor mat, as well as core raw materials TPE original packaging materials/TPE sheets/carpet, etc.

Linyi HUAYANG AUTO Accessories Co., Ltd.

12 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Car Mat, Car Wheels, Car Seat Covers
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
LINYI HUAYANG AUTO ACCESSORIES Co., Ltd IS STRATEGICALLY LOCATED NEARI QINGDAO INTERNATIONAL PORT IN China, WHICH MAKES TRANSPORTATION VERY CONVENIENT. WE HAVE VERY RICH EXPERIENCE IN THE INDUSTRY AND ARE A TRUSTWORTHY SUPPLIER. WE SPECIALIZE IN THE PRODUCTION OF ECO-FRIENDLY CAR SEAT COVERS AND CAR FOOT MATS, ADHERING TO THE PHILOSOPHY OF BRAND, INTEGRITY AND QUALITY. OUR CAR FOOT MATS CAR SEAT COVERS COVER 90%OF THE CAR MODELS WORLDWIDE. SINCE 2010, OUR PRODUCTS HAVE BEEN EXPORTED TO MANY COUNTRIES AND REGIONS. OVER THE YEARS, WE HAVE ACCUMULATEDI MATURE INTERNATIONAL TRADE EXPERIENCE BY ENRICHING OURSELVES THROUGH CONTINUOUS LEARNING AND STUDYING THE STRENGTHS OF OTHERS. R&D AND HONESTY ARE OUR DIRECTION TO MAKE BETTER CONTRIBUTION TO AUTOMOTIVE PRODUCTS. WE CAN ACCEPT O-E-M AND O-D-M. WE SINCERELY WELCOME FRIENDS FROM ALL OVER THE WORLD TO VISIT OUR COMPANY AND COOPERATE WITH US ON THE BASIS OF LONG-TERM MUTUAL BENEFIT. WE LOOK FORWARD TO RECEIVING YOUR INOUIRY AS SOON AS POSSIBLE.

Wenzhou Baixiang Automobile Accessories Co., Ltd.

Main Products:
Skid Plate, Tonneau Cover, Pickup Truck Roller Shutter Cover, Roller Lid, Engine Guard, Battery Protector, Underbody Protection Plate, Auto Parts, Spare Parts, Accessory
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Engine sump guard/skid plate manufacturer. We have been in this line for 17 years, if interested, contact me freely. I will send our latest catalog to you for reference.

Taizhou Enhong Machinery Manufacturing Co., Ltd.

15 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Ball joint, tie rod end, conrol arm, rack end, stabilizer link, drag link, pitman arm for cars
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
EH was established in January 2002, which is a professional manufacturer for steering and suspension parts like suspension ball joints, steering tie rods and tie rod ends, suspension arms, rack ends, stabilizer links.

Shandong Sheenrun Optics & Electronics Co., Ltd.

23 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
CCTV Camera, Long Range Camera, Laser Night Vision Camera, Thermal Imaging Camera, Thermal Camera, Laser Camera, Night Vision Camera, Long Range Thermal Camera, PTZ Camera, IR Camera
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Sheenrun Optics & Electronics company is a high technique enterprise with focus on optics and information technology, which specializing in the area of laser night vision and infrared thermal image camera in China.

Tianjin Ruihe Auto Parts Co., Ltd.

1 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Catalytic Converter/Three-Waycatalytic Converter, DPF/Cdpf/Csf/Scrf/Doc/Poc Catalytic Converter, Twc/Twf/Cu-SCR/Fe-SCR/V-SCR Catalytic Converter, Honeycomb Ceramic Catalyst/Metal Catalyst, Bare Substrate Supplier in China, Marine& Stationary Exhaust Catalytic Converter, Exhaust System Electric Accessory, Exhaust System Mechanical Accessary& Muffler, Customized Parts&Alternative Fuel Catalyst, Catalytic Exhaust System/Tail Gas Purifying
Country/Region:
Tianjin, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Tianjin Ruihe Auto parts Co., Ltd. is the international business division of RICHER Group, dedicated to global promotion and sales of Richer brand products. Building upon the strong technical research and production capabilities of our parent company, we are committed to supplying high-performance exhaust after-treatment products, advanced technical solutions, and professional services to customers worldwide. Our innovation-driven approach, centered on customer needs, ensures continuous optimization of product performance and service experience, positioning Richer as a trusted international brand in the environmental technology sector.

Anping County Kaiyao Wire Mesh Products Co., Ltd.

Main Products:
Fence Farm, 358 Fence, Barbed Wire, Steele Fence, Workshop Isolation Net, Gabion, Wire Mesh Fence, Razor Barbed Wire, Garrison Fencing, Steel Grating
Country/Region:
Hebei, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Anping County Kaiyao Wire Mesh Products Co., Ltd which is professional manufacturer with about 26 years' manufacturing and 10 years' international business experiences. Our company is located in the famous wire mesh base Anping county, Hebei province.

Roadfit Auto Parts Co., Ltd.

8 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Shock Absorber, Coil Spring
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Jiangsu Roadfit Auto Parts Co., Ltd is located in Economic Development Zone of Sihong County Jiangsu Province, which is developing rapidly and has convenient transportation. It is very convenient to ship from Lianyungang Port, Ningbo Port and Shanghai Port. The company is a auto shock absorber producing enterprises and professional on research, design, development and manufacturing. Now the total land area is 100 mu and the workshop building area is 30, 000 square meters. The company has Stamping Parts, Piston Rod Manufactuer And has excellent production equipment, strong technical force, advanced technology, complete testing equipment, perfect quality inspection, rich production experience and perfect quality management system, and enjoys a high reputation in the automotive industry. The company has obtained ISOTS169492002, ISO 9001, CE and other quality system certification. Relying on independent research and development, the company has the core technology of manufacturing method, production technology and quality inspection of shock absorber products. It has 13 national patented technologies. The company has the right to import and export by itself. Its products are exported to the United States, South America, Europe, Southeast Asia, Middle East, Africa and other countries and regions. We are willing to work closely with customers to create brilliance with our excellent quality, exquisite technology, advanced arts and crafts, reasonable price and first-class service.

Anping County Rongzheng Meshworks Group Co., Ltd.

4.9
Main Products:
Temporary Fence&3D Panel Fence&Palisade Fence, 358 Anti-Climb Fence&Clear View&Twin Wire Fence, Putanka(Tank Nets)&Crowd Control Barrier, Chain Link Fence&Steel Grid Plate&Loop Wirefence, Razor Wire&Ss Wire Mesh&BRC/Roll Top Fence, Stainless Steel Wire Mesh&Ss Wire Mesh Filters, Filter Basket Cartridge&Filter Plate&Metal Tray, Paper Making Mesh&Expanded Metal& Conveyer Belt, Welded Wire Mesh&Decorative Mesh&Filter Element, Cattle Fence&Steel Fence
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Anping County Rongzheng Meshworks Group Co., Ltd is a manufacture factory, which was established decades ago, it's earliest trace to 1996, at that time, our forefathers were busy with production and processing. And the factory address is located in Anping County, Hebei Province, China. Our company group is specialized in Temporary Fence&Putanka(tank nets)&3D Panel Fence&Palisade Fence+358 Anti-Climb Fence&Clear View Fence&Twin Wire Fence+Crowd Control Barrier&Cattle Fence&Steel Fence+Chain Link Fence&Steel Grid Plate&Loop Wire Fence+Razor Wire&SS Wire Mesh&BRC/Roll Top Fence+Stainless Steel Wire Mesh&SS Wire Mesh Filters+Filter Basket Cartridge&Filter Plate&Metal Tray+Paper Making Mesh&Expanded Metal& Conveyer Belt+Welded Wire Mesh&Decorative Mesh&Filter Element+Ultrasonic Industrial Cleaner Machine&Dishwasher.

Bengbu Smk Auto Parts Co., Ltd.

Main Products:
Tesla Parts, Control Arm, Suspension Parts, Steering Parts, Tie Rod End, Sway Bar Link, Steering Knuckle, BMW Parts
Country/Region:
Anhui, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
# Bengbu SMK Auto Parts Co., Ltd Produce and Supply Suspension and Steering Parts Fit for Tesla Porsche Maserati BMW Mercedes Benz Audi VW Land Rover Jaguar Lexus Infiniti Acura Ford GMC Jeep FIAT GM Opel Vauxhall Chevrolet Nissan Renault Toyota Mitsubishi Honda Mazda Suzuki Isuzu Peugeot Citroen FIAT Hyundai KIA Daewoo...Engine Mount, Wishbone Arm, /Control Arm, Steering Tie Rod, Stabilizer Bar Link, Steering Knuckle...Our Mainly Market is USA Canada Europe Lati-America...# Advantage: We have our own factory with competitive cost. # We Focus on Quality and Service. # Agent as China Purchase Office of auto parts importer. # We keep stock for Chassis parts and Body parts for Tesla Model 3 Y S X...# We keep stock for Luxury Car Chassis Parts such as control arm, steering tie rod, stabilizer link for Audi A1 A3 Q2 A4 A6 A8 Q5 Q7 TT; For BMM 3 E46 E90 G20 G28, BMW 1 F20 F30, BMW 5 E39 E60 E61 G30 G38 F18 F10 F11, BMW 6 E63 E64, BMW X3 X4 E83 F25 F26, BMW X1 F49 F48 F45 F52 F49, BMW 7 E65 E66 F01 F02 F03 F04 F07 G11 G12, BMW X5 X6 E53 E70 E71 F15 F85 F16 F86 G06 G06 G07, BMW Z4 G29, BMW I3 I01, MINI F55 F56 F57, R52 R50 R53 R56 R57 R58 R59 R60 R61; For Mercedes Benz A W168 W169, B W242 W246, GLA X156, C W203 W204 W205 W206, GLB W247 X247, A W177, E W211 W212, CLS C218, S W220 W221 W222 W223, SL R230 R231 W231, SLK R170 R171 R172, GLK X204, ML W163 W164 X164, G500 G550 G63 W461 W463, R W251, GL X166, GLE C292, ML W166, GLE GLS W167 V167 C167, V W638 W636 W639, W447 W448, W906 W910, Smart W451 W453; For Porsche PANAMERA 970 971, 911 997, 987, 718, 982; For Jeep, Alfa Romeo, F150, HUMMER H2 H3, Jaguar, Cadialic, Chrysler, Dodge, Lincolin, Land Rover, Maserati Ghibli Quattroporte M139 Levante, Acura, Nissan, Volvo, Infiniti, Bentley, Rolls-Royce, Tesla Model S X 3 Y...High Quality Aftermarket Replace Parts Only

Qingdao Huarui Auto Parts Co., Ltd.

26 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Brake Pads, Brake Discs, Brake Caliper, Brake Caliper Bracket, Casting Parts, Steering Knuckle, Auto Parts, Car Accessories, Agricultural Machinery Parts, Construction Machinery Parts
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Founded In 2002 And Headquartered In China, Huarui Group Is A Leader In Automotive Braking System Components. With A Team Of Former Global Brake System Experts, Huarui Specializes In Offering Complete Solutions, From Friction Materials To Full Brake Assemblies. The Company Boasts A CNAS Accredited R&D Lab And Advanced Disa Casting Facilities, Enabling It To Deliver OE Grade Quality With Cost Effective Production. Huarui Product Range Includes Brake Pads, Discs, Calipers, Brackets, Steering Knuckles, And Complete Assemblies. The Company Has Long Term Partnerships With Prominent Manufacturers Like Saic GM Wuling, Byd, And Hyundai, As Well As Global Aftermarket Leaders. The Company Is Vertically Integrated With An In House Bio Composite Friction Material Workshop And An Advanced Casting Facility, Producing 100, 000 Tons Of Cast Parts Annually. Huarui's Commitment To Sustainability Includes Carbon-Neutral Biocomposite Pads And IoT Embedded Wear Sensing Technology For Predictive Maintenance. Huarui Is Also Dedicated To Quality, With A CNAS Certified Lab For Testing And Rapid Prototyping. The Company Supports Partners Through Co Development Programs, Flexible Financing Options, And Dedicated Customer Service, Ensuring Reliable, High Performance Solutions For Both Domestic And International Markets.

Guangzhou Zhenlonghui Auto Accessories Co., Ltd.

9 yrs·4.9
·Manufacturer/Factory & Trading Company
Main Products:
Manual Roller Shutter Tonneau Cover, Electric Roller Shutter Tonneau Cover, Hard Tri-Folding Tonneau Cover, Roof Rack
Country/Region:
Guangdong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Guangzhou Zhenlonghui Auto Accessories Co., Ltd. is located in Shawan Town, Panyu District, Guangzhou City with a long history and beautiful scenery. Is a set of manual tonneau cover, Tri-fold tonneau cover, electric tonneau cover, luggage rack research and development, production, sales as one of the professional manufacturers.

Foshan Willwin Trading Co. Ltd

Trading Company
Main Products:
Muffler, Roll Bar, Bumper, Body Kit, Auto Accessories
Country/Region:
Guangdong, China
R&D Capacity:
ODM Service
Sample Service:
Sample Available
Company Profile:
Will Win Trading is a company who focus on design and selling auto spare parts for 4X4. Through years of knowing the market, we have designed exclusive products suitable for different markets to meet the needs of different off-road and car modification enthusiasts. Specializes in muffler, body kits, roll bar, bumper for 4X4, SUV, sport sedan etc.

Shanghai Zhichen Technology Co., Ltd

4 yrs
·Trading Company
Main Products:
Ignition Coil, Auto Sensors, Hub Unit, Power Steering Pump, Fuel Injector Nozzle, Control Valve, Ignition Wire, Paper Sauce Cups.
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Shanghai Zhichen Technology Co., Ltd, located in Shanghai, China, is a focus on auto parts import and export trade company, We have created high technical requirements and strict guality control standards through cooperation with well-known universitiesand manufactures. Market-oriented and satisfying the customers are the guideline for product development. Till now over 20categories of commodities which can be used on over 10 thousand model of cars can be provided, which meet the needs of variousregions and countries...Zhichen company that provides high quality auto parts products and sincere service for partners. Company orientation: Supply auto parts of engine management system and offer high-guality service

Sichuan Mighty Machinery Co., Ltd.

13 yrs·5.0
Main Products:
Shock Absorber, Control Arm, Ball Joint, Tie Rod End, Steering Rack, Wheel Hub Bearing, Car Radiators, Condensers, Car Air Filters Oil Filters, Car Sensors
Country/Region:
Sichuan, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
We supply a wide range of high-quality auto chassis parts, including shock absorbers, control arms, ball joints, stabilizer links, tie rod ends, wheel hub bearings, suspension bushings, CV joints, steering racks, coil springs, and more. Our products offer reliable performance, durable quality, competitive wholesale prices, and are suitable for various vehicle models worldwide.

Zhuhai Witson Industrial Co., Ltd.

23 yrs·5.0
Main Products:
Special Car DVD GPS, Car DVD Player, Car Multimedia, Car DVD with GPS, Car Monitor, Car GPS, Car Audio, Special Car DVD, Car GPS System, Vehicle Radio
Country/Region:
Guangdong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
WITSON is a distinguished Chinese manufacturer and exporter of car DVD players, boasting an impressive 21-year history since its establishment in 2004.

Lechang Xin dongsui Auto Accessories Co., Ltd.

8 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Car Accessories
Country/Region:
Guangdong, China
R&D Capacity:
ODM Service
Sample Service:
Sample Available
Company Profile:
Established in 2010, Guangzhou Dongsui Auto Accessories Co., Ltd is a professional manufacturer that is engaged with researching, developing, producing, sale and service of American Semi Truck Deer Guards, Pickup Truck Roll Bars, Bull Bar, Step Bars, Fender Flares, Tonneau Covers and Roof Rack etc. Our factory is located in Baiyun district of Guangzhou city, near Baiyun Airport.

TAIZHOU DONGNA MECHANICAL&ELECTRICAL CO., LTD

10 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Ball Joint, Tie Rod End, Axial Joint Rack End, Stabilizer Link Sway Bar Link, Control Arm, Steering Rack
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Taizhou Dongna Mechanical&Electrical Co., Ltd with two manufacturing bases in Yuhuan, Zhejiang province, which is professional manufacturer of steering rack and suspension parts since 2002. The company's rapid growth over quite years attributed to Competitive prices, Constant range development and Guaranteed quality.