Home
Supplier Discovery
Auto, Motorcycle Parts & Accessories
Auto Steering Systems
Differentials Factories & Companies
Filter
Category
Consumer Electronics
Construction & Decoration
Electrical & Electronics
Manufacturing & Processing Machinery
Metallurgy, Mineral & Energy
More
Management Certification
ISO9001:2008
ISO14001:2004
Others
ISO9001:2015
ISO14001:2015
More
R&D Capacity
OEM
ODM
Own Brand
Others
Annual Revenue
<1 Million USD
1 ~ 2.5 Million USD
2.5 ~ 5 Million USD
5 ~ 10 Million USD
10 ~ 50 Million USD
More
No.of Employees
Less than 5 People
5-50 People
51-200 People
201-500 People
501-1000 People
More
Province & Region
Anhui
Beijing
Chongqing
Fujian
Gansu
More
about differentials
Technological Innovation
Reliable Supply Chains
Substantial Manufacturing Capabilities
differentials
5,000+ factories verified
Shandong Qinyi Auto Parts Manufacturing Co., Ltd
10 yrs
·
4.5
·
Manufacturer/Factory & Trading Company
Send Inquiry
Support Customization Differential for Sinotruk Steyr HOWO AC16 AZ9981320136
US$
113.00
-
228.00
1 Piece
(MOQ)
Factory Price Spider-Shaft Side-Gear Repair-Kit Axle Differential for Volvo Truck-Parts 1524888/1524883/21302536/1524886/1524889/892-W-5743/8172930/20480075
US$
25.00
-
87.00
1 Piece
(MOQ)
Support Customization Truck Rear Axle Differential for Sinotruk HOWO Steyr Parts Assembly 199014320503
US$
47.00
-
95.00
1 Piece
(MOQ)
Frod Heavy Truck Spare Parts Differential Case Oil Cover Bn0401s0-2
US$
1.00
-
5.00
1 Piece
(MOQ)
1/4
Youbisheng (Fujian) Machinery Industrial Co., Ltd.
22 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
41110-71240 Front Differential with Lock for Toyota Hilux Vigo Differential Assemble
US$
499.00
5 Pieces
(MOQ)
High Quality Diff Locker Rear Differential for Lexus470 Rear E-Lock Differential
US$
335.00
-
385.00
10 Pieces
(MOQ)
Rear Differential Carrier Assembly for Land Cruiser LC100 Diff-Lock
US$
71.50
-
89.50
30 Pieces
(MOQ)
Chon 41110-60A30 SUV Land Cruiser LC100 Complete Carrier Assembly Differential for Toyota
US$
29.00
-
259.00
10 Pieces
(MOQ)
1/4
Shandong Gates auto Parts Manufacturing Co., LTD
7 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Chinese Manufacturer Produces High-Quality HOWO Heavy-Duty Az9231320741/Az92313200743 Car Rear Differential
US$
220.00
-
260.00
1 Piece
(MOQ)
China National Heavy Duty Truck HOWO Dump Truck Accessories, Customized High-Quality China National Heavy Duty Truck HOWO Accessories 199014320165 Differential
US$
70.00
-
100.00
1 Piece
(MOQ)
Rear Differential Reducer Qt295D304-2402000/Qt295D304-6.142A1857 Foton China Truck High Quality Factory
US$
220.00
-
260.00
1 Piece
(MOQ)
41110-26440 41110-26442 Hilux Hiace Rear Differential Carrier
US$
220.00
-
260.00
1 Piece
(MOQ)
1/4
Jiangmen Letus Auto Parts Co., Ltd
5.0
Send Inquiry
Rear Differential 9X40 for KIA K2700/ Bongo / Frontier 2WD
US$
115.00
-
145.00
1 Piece
(MOQ)
Truck Parts Differential for Toyota 1kd 2kd Differential Gear Sets 11*43 3.91
US$
98.00
-
150.00
1 Piece
(MOQ)
Carrier Assembly Differential 43: 10 41110-60A31 41110-60880 41110-60881 41110-60A30 for Toyota Land Cruiser
US$
100.00
-
180.00
1 Piece
(MOQ)
Diesel Engine Rear Differential for Isuzu D-Max 10/41 Ratio
US$
210.00
-
300.00
1 Piece
(MOQ)
1/4
Qingdao Bestya International Trade Co., Ltd.
4.0
Send Inquiry
China Differential Manufacturer for Toyota Hilux/Pickup/Hiace Toyota Lexus/Prado/Tundra/Tacoma/Land Cruiser/4 Runner/Fortuner
US$
110.00
-
495.00
10 Pieces
(MOQ)
China Differential Manufacturer for Toyota Hilux/Hiace Isuzu Nkr13/Nkr55/Npr59/Npr66/Nqr70/Npr71/Npr75/Nqr/Mitsubishi/PS100/PS120/PS125/Pajero
US$
110.00
-
495.00
10 Pieces
(MOQ)
897035417051 7/43/897363100051 7/41/8973887000 10/41/8970354150 7/39/Mc076510-1 7/40 /Mc076510 6/40/Mc870604 7/37/Mc870604-1 6/37/8981049040 10/43 Differential
US$
110.00
-
495.00
10 Pieces
(MOQ)
897035417051/897363100051/8973887000/8970354150/Mc076510-1/Mc076510/Mc870604/Mc870604-1/8981049040 Drive/Carrier/Reducer Differential Assy for Isuzu/Mitsubishi
US$
110.00
-
495.00
10 Pieces
(MOQ)
1/4
Fujian Autec Factory Automation Equipment Co., Ltd.
19 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Ao3051dp/Gp Isolated High Stability Intelligent Remote Pressure/Differential Pressure Transmitte
US$
350.00
-
625.00
1 Piece
(MOQ)
Ao3051dp/Gp Isolated High Seismic Resistance Intelligent Remote Pressure/Differential Pressure Transmitte
US$
350.00
-
625.00
1 Piece
(MOQ)
Ao3051dp/Gp Isolated Easy Meter Reading Intelligent Remote Pressure/Differential Pressure Transmitte
US$
350.00
-
625.00
1 Piece
(MOQ)
Ao3051dp/Gp Isolated Intelligent Remote Pressure/Differential Pressure Transmitte
US$
350.00
-
625.00
1 Piece
(MOQ)
1/4
Hebei Cavwo Auto Parts Co., Ltd.
Send Inquiry
Factory Direct Truck Parts Differential for Dump Truck Van
US$
200.00
-
300.00
100 Pieces
(MOQ)
Factory Direct Auto Parts Differential for Sinotruk Pickup Truck
US$
200.00
-
300.00
100 Pieces
(MOQ)
Transmission System Standard Differential for Sinotruk Van
US$
200.00
-
300.00
100 Pieces
(MOQ)
Factory Direct Transmission System Differential for Van City Bus
US$
200.00
-
300.00
100 Pieces
(MOQ)
1/4
Fujian Zhenfa Gear Co., Ltd.
14 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Professional Manufacturing Factory Differential Kits Forhyundai 2.5ton Oldps100 16t-18t, 11t
US$
35.24
100 Pieces
(MOQ)
Differential Spider Kit Formitsubishi PS125 6D16 16t-22t 11t
US$
15.02
100 Pieces
(MOQ)
Professional Manufacturing Factory Wx11825 Differential Kits Fordyna 37t 16t-37t, 10t
US$
35.24
100 Pieces
(MOQ)
Professional Manufacturing Factory Differential Kits Forisuzu Npr 19t-20t 10t
US$
35.24
100 Pieces
(MOQ)
1/4
Hangzhou Meisu Automotive Parts Co., Ltd
4 yrs
·
5.0
·
Trading Company
Send Inquiry
High Performance Auto Parts 33107524325 Rear Differential Assembly for BMW 3 Series E81 E90 E90 E91 E92 E93
US$
400.00
1 Piece
(MOQ)
High Performance Auto Parts Rear Differential Assembly T2h24288 for Jaguar Xe Xf
US$
680.00
1 Piece
(MOQ)
High Quality Front Axle Differential 68154503ab 68060206ad for Jeep Grand Cherokee 2012
US$
350.00
1 Piece
(MOQ)
Brand New Transfer Case Diff Front Axle Differential 31507594315 for BMW 730 740 750 760
US$
560.00
1 Piece
(MOQ)
1/4
Jinan Deyuan Heavy Industry Co., Ltd.
1 yrs
·
Trading Company
Send Inquiry
Shaanxi Aceldong New M3000 Wheel Differential Assembly MID-Axle
US$
118.00
-
168.00
2 Pieces
(MOQ)
Truck Parts Chassis Parts Differential Assembly
US$
88.99
2 Pieces
(MOQ)
Applicable to Shaanxi Auto Delong K3000 Rear Axle Differential
US$
118.00
-
168.00
2 Pieces
(MOQ)
Heavy Duty Truck Haowo Ouman 711-35010-6182 M11 Rear Axle Differential Shaanxi Automobile Liberation Differential
US$
90.00
5 Pieces
(MOQ)
1/4
Shandong Chiron Auto Parts Co., Ltd.
15 yrs
·
Trading Company
Send Inquiry
Sinotruk HOWO Parts Truck Parts Truck Spare Parts Differential Wg9231320071 Differential (46 teeth)
US$
1.00
-
55.00
1 Piece
(MOQ)
199014320165 China National Heavy Duty Truck HOWO Dump Truck Accessories, Customized High-Quality China National Heavy Duty Truck HOWO Accessories Differential
US$
1.00
-
60.00
1 Piece
(MOQ)
HOWO Shacman Sinotruk Differential Assembly 19014320166 Differential (8 teeth)
US$
1.00
-
55.00
1 Piece
(MOQ)
Sinotruk HOWO Truck Parts Differential Spider D24 199014320091-24
US$
1.00
-
8.00
1 Piece
(MOQ)
1/4
Hangzhou Yes New Energy Tech Co., Ltd.
6 yrs
·
4.9
·
Manufacturer/Factory & Trading Company
Send Inquiry
Rear Differential 1332802 1332914 1332492 for Polaris Scrambler Sportsman 1000 850 550
US$
255.00
-
275.00
1 Piece
(MOQ)
Rear Differential 705502546 705502178 705502090 705501723 for Can-Am Outlander Max 650/850/1000r 2016-2021
US$
178.00
-
218.00
1 Piece
(MOQ)
Rear Differential 705501419 705501391 703501019 703500878 for Can-Am Outlander 450 Outlander 570 4× 4
US$
200.00
-
220.00
1 Piece
(MOQ)
Rear Differential 41300-Hc4-000 for Honda ATV Trx300 a
US$
125.00
-
135.00
1 Piece
(MOQ)
1/4
Meokon Sensor Technology (Shanghai) Co., Ltd.
13 yrs
·
5.0
·
Manufacturer/Factory
Send Inquiry
Ebay Hot Sell 30bar Compact Low Cost Differential L Pressure Transmitterwith 4-20mA&Hart for Food Paper
US$
202.90
-
239.90
1 Piece
(MOQ)
China Micro Manometer Stainless Steel Liquid Water Filled Pressure Gauge MD-S280
US$
45.98
-
79.98
1 Piece
(MOQ)
High Precision 1%Fs Digital Pressure Gauge with LCD Display MD-S260
US$
21.88
-
29.98
1 Piece
(MOQ)
Stainless Steel Type Diaphragm Pressure Gauge for Sanitary Industry
US$
45.98
-
79.98
1 Piece
(MOQ)
1/4
Shandong Welle Vehicle & Parts Co., Ltd.
5.0
Send Inquiry
Transmission Az9231320271 Differential Assembly for China Heavy Truck Parts
US$
53.90
-
58.90
1 Piece
(MOQ)
Intermediate Axle Differential Assembly Wg9231320071 for Sinotruk HOWO Part
US$
53.90
-
58.90
1 Piece
(MOQ)
Sinotruk Dump Truck Differential Assy Az9231320272 for HOWO Rear Axle Differential Assembly
US$
53.90
-
58.90
1 Piece
(MOQ)
HOWO Shacman Sinotruk Differential Assembly 19014320166
US$
49.00
-
99.00
1 Piece
(MOQ)
1/4
Jinhua Sunway Imp. and Exp. Co., Ltd.
13 yrs
·
Trading Company
Send Inquiry
ATV Parts Front Gear Case Differential 13203100000 for Odes Bike
US$
162.50
-
164.50
10 Pieces
(MOQ)
UTV ATV Parts Rear Gear Case Differential 705502808 for Brp Outlander 850 Max 1000r
US$
160.00
-
162.50
10 Pieces
(MOQ)
ATV Parts Rear Gear Case Differential 705501997 for Outlander 400 500 650 800
US$
160.50
-
162.50
10 Pieces
(MOQ)
ATV Parts Rear Gear Case Differential 703500878 for Can-Am UTV
US$
160.00
-
162.50
10 Pieces
(MOQ)
1/4
Beijing Jiapin Ruitong Auto Parts Co., Ltd.
Send Inquiry
Hyun-Dai Tucson KIA Sportage OEM 53000-39200 Automotive Parts Rear Differential
US$
128.00
2 Pieces
(MOQ)
Hyundai Veracruz KIA OEM 53000-24000 Automotive Parts Rear Differential
US$
733.00
2 Pieces
(MOQ)
Hyun-Dai KIA OEM 53000-3b300 53000-3b400 53000-3c020 Automotive Parts Differential
US$
173.00
2 Pieces
(MOQ)
Hyun-Dai Rohens Coupe Equus KIA OEM 53000-3c020 Automotive Parts Rear Differential
US$
366.00
2 Pieces
(MOQ)
1/4
Guangzhou Tech Master Auto Parts Co. Ltd
5.0
Send Inquiry
W246/W117 Cla250 A45 B250 4matic Differential Assembly Rear A2463502402 A2463520500
US$
900.00
1 Piece
(MOQ)
M-Ercedes Ben Z Rear Position Transfer Case and Differential Assembly OEM A2463502402 A2463520500 A2469970046
US$
888.00
-
900.00
1 Piece
(MOQ)
Differential Type 33107636992 33107636994 Differential Assembly B-MW X5 F15 X6 F16
US$
251.00
-
285.00
1 Piece
(MOQ)
B-MW X5 F15 X6 F16 Rear Axle Differential Assembly 33107636992 33107636994
US$
285.00
1 Piece
(MOQ)
1/4
Jiaxing Huaxing Environmental Protection Technology Co., Ltd.
Send Inquiry
HS3754 Tractor Truck Part Az712732001122 Mcp16/MCX16 Heavy Duty Trucks Engine Parts Differential
US$
78.00
-
82.00
10 Pieces
(MOQ)
HS3023 Heavy Duty Sinotruk Truck Engine Part Wg923132027 Hc16/5.73/4.8diesel Engine Rear Differential
US$
78.00
-
82.00
10 Pieces
(MOQ)
HS3751 Auto Spare Part 810W35606-011 Mcy13 Heavy Duty Truck Parts Transmission Differential
US$
78.00
-
82.00
10 Pieces
(MOQ)
HS3042 Heavy Duty Truck Spare Part Wg9231320274 4.8 Hc16 /4.42 Auto Differential
US$
78.00
-
82.00
10 Pieces
(MOQ)
1/4
Hangzhou Benjiaming Technology Co., Ltd.
Send Inquiry
ATV UTV Spare Parts for Polaris Ranger Rzr Turbo XP 1000 General Front Differential OEM 1333368 1333745 1334143
US$
219.00
-
235.00
1 Piece
(MOQ)
OEM Q860-330000-00002 Q860-330000 Q860-330000-00001 Motorcycle Parts Rear Axle Differential for CF ATV UTV Ssv 550 1000
US$
441.00
-
452.00
1 Piece
(MOQ)
ATV UTV Parts Front Differential for CF U5 U8 Z5 Z6 Z8 Zforce 500 600 800 1000 Uforce 500 800 OEM Q810-310000 Q810-310000-00002
US$
182.00
-
195.00
1 Piece
(MOQ)
ATV UTV Parts Front Axle Transmission Box Gearbox Differential for CF500 Cforce 600 625 800 OEM Q800-310000 0180-310000-1000
US$
188.00
-
198.00
1 Piece
(MOQ)
1/4
Xuchang Hengna Trading Co., LTD
6 yrs
·
5.0
·
Trading Company
Send Inquiry
1: 41 Low-Speed Differential Heavy-Duty Oil Brake Rear Axle Reducer Gearbox
US$
112.04
-
126.66
3 Pieces
(MOQ)
Low Speed Differential, Heavy-Duty Oil Brake, Rear Axle Reducer Gearbox
US$
116.64
-
131.86
3 Pieces
(MOQ)
13kw 1: 5: 10 Variable Speed Differential Package Motor, MID Mounted Gearbox Drive
US$
1,052.41
-
1,189.69
3 Pieces
(MOQ)
1: 5: 10 Variable Speed Differential Package 10kw Motor, MID Mounted Gearbox Drive
US$
799.41
-
903.69
3 Pieces
(MOQ)
1/4
Jinan Carman International Trade Co., Ltd.
13 yrs
·
5.0
·
Trading Company
Send Inquiry
Az9981320020 Sinotruk HOWO AC Shacman Weichai Truck Spare Part Differential
US$
95.00
-
100.00
10 Pieces
(MOQ)
Az9231320273 for Sinotruk HOWO AC16 Hc16 Alex Inter Wheel Differential
Negotiable
10 Pieces
(MOQ)
9981340436 Shacman Sinotruck HOWO FAW Weichai Deuzt Truck Interaxle Differential
US$
150.00
-
160.00
10 Pieces
(MOQ)
199014320166 Sinotruk HOWO AC16 Hc16 Interaxle Differential
Negotiable
10 Pieces
(MOQ)
1/4
QINGDAO SATA IMPORT AND EXPORT CO., LTD.
5.0
Send Inquiry
2023 Hot Sale Sinotruk HOWO Truck Parts Differential Cover 199012320198 for HOWO Axle Gear Differential
US$
60.00
-
68.00
1 Piece
(MOQ)
2023 Hot Sale Sinotruk HOWO Truck Parts Bridge Box Body 199014320259 for HOWO Differential Housing
US$
43.00
-
48.00
1 Piece
(MOQ)
2023 Hot Sale Sinotruk HOWO Truck Parts Axle Differential Assembly 199014320166 for HOWO Axle Differential Assembly
US$
76.00
-
79.00
1 Piece
(MOQ)
Sinotruk HOWO Differential Az9231320271 High Quality
US$
60.00
-
70.00
1 Piece
(MOQ)
1/4
Ningbo Tofull Motorcycle Parts Co., Ltd.
Send Inquiry
Honda Trx420 Rancher ATV Rear Differential Rear End 41300-HP5-600 2007-2013
US$
88.58
100 Pieces
(MOQ)
41300-Hc4-000 New Differential for Honda ATV 1988-1992 Trx300 and Trx300fw
US$
91.88
-
93.88
100 Pieces
(MOQ)
Rear Final Gear Differential for Honda ATV Trx350 Trx400 41300-Hn5-671
US$
88.58
100 Pieces
(MOQ)
Rear Final Drive Differential Gear 41300-HP0-B80 for Honda Foreman 2005-2014
US$
92.88
100 Pieces
(MOQ)
1/4
Shaoxing Tosen Auto Part Co., Ltd.
5.0
Send Inquiry
Complete Differential for Mitsubishi Pajero / Shogun
US$
65.00
-
150.00
1 Piece
(MOQ)
Auto Parts 8X39 Limited Slip Differential for Toyota Hiace Hilux
US$
350.00
-
420.00
10 Pieces
(MOQ)
Auto Parts Limited Slip Differential 10X43 for Toyota Hiace Hilux
US$
350.00
-
420.00
10 Pieces
(MOQ)
Auto Parts Limited Slip Differential 9X41 for Toyota Hiace Hilux
US$
350.00
-
420.00
10 Pieces
(MOQ)
1/4
IDO GROUP CO., LTD.
16 yrs
·
5.0
Send Inquiry
Car Auto Parts Main Reducer Differential for Toyota Hlilux Nissan Mitsubishi Honda Isuzu Hino Subaru Japanese Car
US$
55.00
-
75.00
5 Pieces
(MOQ)
RD135 4x4 Offroad Car Auto Parts Air Locking Differential for Nissan Patrol Terrano II Navara D21 D2
US$
365.00
-
385.00
1 Set
(MOQ)
RD204 4x4 Offroad High Quality Auto Parts Rear Air Locking Differential for Suzuki Grand Vitara
US$
365.00
-
385.00
1 Set
(MOQ)
Auto transmission Differential for Dongfeng 474 10: 43
US$
69.90
-
139.90
10 Pieces
(MOQ)
1/4
Wenzhou Ideer Auto Parts Co., Ltd
5.0
Send Inquiry
Differential Case Differential Gear Differential Lock for Vaz Lada Niva 2123-00-24030180-010
US$
270.00
-
280.00
50 Pieces
(MOQ)
Front Differential 4WD Actuator Shift Fork for Toyota Hilux Vigo Tacoma 4runner Fj Cruiser 41400-35033 41400-35031
US$
38.00
-
39.00
30 Pieces
(MOQ)
Differential Case 41311-60060 41311-60061 for Toyota Hiace Hilux 11X43 12X43
US$
35.00
-
40.00
50 Pieces
(MOQ)
Differential Lock for Uaz 469 452 316000240301011 2403160
US$
180.00
-
200.00
50 Pieces
(MOQ)
1/4
Shandong Weiyang Construction Machinery Co., Ltd.
8 yrs
·
5.0
·
Trading Company
Send Inquiry
Lonking 36403000028 Differential Lgq518.04.03.02 for LG855n Wheel Loader
US$
160.00
-
200.00
1 Set
(MOQ)
Original Zl50g Wheel Loader 275102056 Differential Assembly
US$
171.00
1 Piece
(MOQ)
LG936L L956f Wheel Loader Axle Differential 7200000118
US$
140.00
-
170.00
1 Piece
(MOQ)
Sinotruck HOWO 371 Truck Auto Part Az9231320271 Differential
US$
50.00
-
180.00
1 Piece
(MOQ)
1/4
Guangzhou Lingyue Auto Parts Co., Ltd.
4.9
Send Inquiry
Rear Differential Carrier for Toyota Hiace Hilux 4runer Khd200 Kun25 26 41110-35222
US$
2.00
1 Piece
(MOQ)
Differential Front Suitable for Hilux Kun26 Ggn25 41110-0K280 41110-0K281
US$
1.00
1 Piece
(MOQ)
High Quality Front Differential Actuator for Toyota Hilux OEM 41400-35031
US$
8.00
-
70.00
2 Pieces
(MOQ)
Differential Reconstruction Kit for Toyota Hilux Vigo 41039-34070
US$
3.00
10 Pieces
(MOQ)
1/4
Mz Motor Co., Ltd.
15 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Electric Tricycle Vehicle Complete Drum Brake Rear Differential Axle
US$
34.00
-
39.50
50 Pieces
(MOQ)
Best Quality E Rickshaw 33 35 Inch Differential for 1200W Motor
US$
35.00
-
45.00
20 Pieces
(MOQ)
Factory High Power High Quality Gear Box for Golf Cart E-Rickshaw Differential
US$
34.00
-
39.50
50 Pieces
(MOQ)
Factory Electric Tricycle Rear Axle with Differential Customizable Length
US$
35.00
-
45.00
20 Pieces
(MOQ)
1/4
Jinan Sinorise Import And Export Co., Ltd
6 yrs
·
5.0
·
Trading Company
Send Inquiry
American Truck Parts Eaton Interaxle Diff. Assy Differential Assembly 128634
US$
40.00
-
50.00
1 Piece
(MOQ)
World American Truck Parts Eaton Interaxle Differential Spicer Assembly 128634
US$
30.00
-
40.00
1 Piece
(MOQ)
European for Renault Heavy Truck Parts Differential Assembly 5010611078 Euroricambi Quality of Truck Spare Parts
US$
40.00
-
60.00
1 Piece
(MOQ)
Sinoascend Wheel Hub Differential Axle Gear Truck Parts
US$
3.00
-
10.00
1 Piece
(MOQ)
1/4
1
189
Hot Products
China Valve
China Gear
Water Valve
Refrigeration Equipment
Pressure Valve
Transmission Shaft
Pneumatic Valve
Hydraulic Control Valve
Related Manufacturers & Supplier
Solenoid Valve Factories
Pinion Gear Factories
Differential Gear Factories
Air Solenoid Valve Factories
Pressure Reducing Valve Manufacturers
Oil Solenoid Valve Manufacturers
Solenoid Valve For Water Manufacturers
Brass Solenoid Valve Manufacturers