Home
Supplier Discovery
Instruments & Meters
Water Meter
Remote Meter Factories & Companies
Filter
Category
Consumer Electronics
Construction & Decoration
Electrical & Electronics
Manufacturing & Processing Machinery
Metallurgy, Mineral & Energy
More
Management Certification
ISO9001:2008
Others
ISO9001:2015
ISO14001:2015
ISO45001:2016
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 remote meter
Technological Innovation
Reliable Supply Chains
Substantial Manufacturing Capabilities
remote meter
6,000+ factories verified
NINGBO DEAZESU WATER METER CO.,LTD.
Send Inquiry
IP68 Multi-Jet Dry Type Water Meter with AMR/Ami Nb-IoT Remote Reading
US$
25.20
-
35.60
100 Pieces
(MOQ)
Register Remote Transmission Multi-Jet Dry Type Water Meter with Lora Module/Nb-IoT
US$
25.00
-
26.50
100 Pieces
(MOQ)
MID Approval DN40-DN300 Bulk Ultrasonic Water Meter with Non-Moving Parts Remote Communication
US$
349.00
-
360.00
100 Pieces
(MOQ)
MID Approval Single Jet Dry Type Hot Water Meter with Remote Transmission
US$
4.25
-
5.10
100 Pieces
(MOQ)
1/4
Shenzhen Xingyuan Intelligent Meter Co., Ltd.
17 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Class-B Wsz12dm-32A 2000imp/Kwh Single-Phase Electricity Smart Remote Reading Meter for Consumption Tracking
US$
16.00
-
19.00
100 Pieces
(MOQ)
High-Accuracy Wireless Liquid Flow Sensing Remote Water Meter for Industrial Applications
US$
37.00
-
43.00
100 Pieces
(MOQ)
Long-Lasting Accurate Flow Remote Reading Water Meter for Consumption Monitoring
US$
10.00
-
15.00
1 Piece
(MOQ)
Nb-Lot/RS485/M-Bus Communication Methods Remote Reading Smart Water Meter Used for School
US$
99.00
-
120.00
1 Piece
(MOQ)
1/4
Tai'an Desheng Information Technology Co., Ltd.
2 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Integrated Keypad Ultrasonic Prepaid Token Sts Smart Water Meter 15-50mm Digital Remote
US$
32.00
-
38.00
1 Piece
(MOQ)
WiFi 4G GPRS Wholesales Remote Monitoring System for Smart Water Meter
US$
26.00
-
33.00
1 Piece
(MOQ)
Smart WiFi Remote Shut off Valve Water Meter with Phone APP
US$
32.00
-
40.00
1 Piece
(MOQ)
Smart Domestic Lorawan GPRS 4G Remote Valve Control Ultrasonic Water Meter R200-R400
US$
33.00
-
40.00
1 Piece
(MOQ)
1/4
Ningbo KIO Flow Instruments Co.,Ltd.
18 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Custom Sensors Digital Transmitter Price Remote Electro Magnetic Flow Meter
US$
309.00
1 Piece
(MOQ)
Customized Electromagnetic Flowmeter Sensors Digital Transmitter Remote Electro Magnetic Flow Meters (KF700FA)
US$
309.00
1 Piece
(MOQ)
Sensors Digital Transmitter Remote Electro Magnetic Plastic Water Flow Meters (KF700FA)
US$
309.00
1 Piece
(MOQ)
Sensors Digital Transmitter Plastic Water Flow Meter Remote Electro Magnetic Flow Meter
US$
309.00
1 Piece
(MOQ)
1/4
Zhejiang Xinghao Technology Co., Ltd.
17 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Met321 Three Phase Sts Dlms Remote Smart Energy Meter
US$
1.00
-
80.00
100 Pieces
(MOQ)
Dac4121c DIN Rail Single Phase Tuya WiFi Energy Meter Multi-Tariff Function Kwh Meter with Relay Remote Management Control Electricity Meter
US$
27.00
50 Pieces
(MOQ)
Dac4120c DIN Rail Single Phase WiFi Remote Electric Digital Energy Meter with Multi-Function
US$
23.00
-
40.00
100 Pieces
(MOQ)
Dac7360c DIN Rail Three Phase Zigbee Remote Smart Multi-Function Energy Meter
US$
46.00
-
50.00
100 Pieces
(MOQ)
1/4
Hangzhou Beta Meter Co., LTD.
28 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Remote Diaphragm Pulse Smart Stainless Steel Gas Meter Pg1.6 (S)
US$
12.00
-
13.00
300 Pieces
(MOQ)
MID-Certified AMR Smart Remote Wireless Steel Case Reading Gas Meter
US$
12.00
-
13.00
100 Pieces
(MOQ)
Remote Mbus Modbus Diaphragm Gas Meter MID Certified
US$
11.00
1 Piece
(MOQ)
Remote Aluminum Case Pulse Diaphragm Gas Meter
US$
12.00
-
13.00
100 Pieces
(MOQ)
1/4
Gongzun Instrument (Zhejiang) Co., Ltd.
7 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
GPRS Remote Domestic Smart Gas Meter
Negotiable
1 Piece
(MOQ)
Nb-Iot Remote Domestic Smart Gas Meter G1.6/G2.5/G4/G6
US$
55.00
-
62.00
100 Pieces
(MOQ)
Digital Pressure and Temperature Gauge with Two Channels
US$
285.00
-
295.00
10 Pieces
(MOQ)
IC Card Motorised Valve Controller Combine with Gas Flowmeter
Negotiable
1 Piece
(MOQ)
1/4
Shenzhen StarWSN Science & Technology Co., Ltd.
10 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
4G Lora Nb-IoT Wireless Battery Powered Remote Detection Ultrasonic Doppler Water Flow Rate,Velocity,Level and Temperature Monitoring Meter for Pipeline Manhole
US$
1,670.00
2 Sets
(MOQ)
Remote Monitoring Wireless Lorawan Nb-IoT Immersion-Type Water Level Gauge Level Meter
US$
735.00
2 Pieces
(MOQ)
Multi-Functional Remote Monitoring Lora Nb-IoT Doppler Radar Flowmeter Water Level Cod Meter
US$
2,950.00
2 Sets
(MOQ)
High Precision Integrated Remote Monitoring Water Liquid Level Sensor Meter for Manhole
US$
275.00
2 Pieces
(MOQ)
1/4
OSMeterings Instrument (Shanghai) Co., Ltd.
Manufacturer/Factory & Trading Company
Send Inquiry
Wireless Remote Water Meter IoT-Enabled for Remote Reading & Data Monitoring
US$
50.00
-
200.00
1 Piece
(MOQ)
Battery-Powered Electromagnetic Flow Meter for Remote Locations
US$
200.00
-
500.00
1 Piece
(MOQ)
304 Stainless Steel Ultrasonic Water Meter with Remote Reading LCD Display
US$
50.00
-
200.00
1 Piece
(MOQ)
Water Meter with 4G/Nb-IoT Remote for Cold/Hot Water T50 T30 0-50℃ Measurement
US$
50.00
-
200.00
1 Piece
(MOQ)
1/4
Hebei Shanghong Meters Technology Co., Ltd.
Send Inquiry
DN15-DN40 Small Size Digital Smart Remote Reading Wireless Intelligent Ultrasonic Water Meter
US$
25.00
-
60.00
100 Pieces
(MOQ)
Remote Reading R400/R800 Ultrasonic Water Meter Price
US$
30.00
-
70.00
100 Pieces
(MOQ)
Brass Body AMR Remote Reading Lorawan Water Meter
US$
30.00
-
50.00
100 Pieces
(MOQ)
15mm-25mm Wireless Smart Remote Water Meter AMR Lora Water Flow Meter
US$
30.00
-
50.00
100 Pieces
(MOQ)
1/4
Shandong Rongxian Instrument Technology Co., Ltd.
10 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Single Phase Smart Suspended Electricity Meters Remote Sub-Meters with Qr Code
US$
16.00
-
18.00
500 Pieces
(MOQ)
Digital Smart Remote Reading Wireless Intelligent Water Meter
US$
32.80
-
35.70
1,000 Pieces
(MOQ)
Wlw Smart Water Meter with Brass Body for Wireless Remote Reading First
US$
26.00
-
28.00
500 Pieces
(MOQ)
Corrosion Resistant Remote Monitoring Ultrasonic Water Meter for Industrial
US$
87.00
-
89.00
500 Pieces
(MOQ)
1/4
Shanghai Cixi Instrument Co., Ltd.
18 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Shanghai Gns Agriculture Irrigation Digital Remote Reading Card Type Water Meter Ultrasonic Water Meter
US$
88.00
-
158.00
5 Pieces
(MOQ)
Dn25 Pulse and 4-20mA Output PTFE Lining SS316L Electrode Remote Type IP68 Flow Meter Water Flow Meter
US$
408.00
-
660.00
1 Piece
(MOQ)
Agriculture Irrigation Card Type Ultrasonic Water Meter DN65 Digital Remote Reading Ultrasonic Water Meter
US$
45.00
-
150.00
1 Piece
(MOQ)
DN40 3-Inch Sewage Water Electromagnetic Flow Meter with Remote Digital Display
US$
199.00
-
2,980.00
1 Piece
(MOQ)
1/4
Jiangsu Sfere Electric Co., Ltd.
28 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Real-Time Measurement I/U/P/Q/S/F/PF Multifunction Power Meter for Data Remote Monitoring
US$
40.00
-
50.00
1 Piece
(MOQ)
Smart Power Remote Management System Digital Power CT Meter Modular Design RS4854/Nb-Iot
US$
95.00
-
125.00
1 Piece
(MOQ)
Advanced Remote Power Monitoring Meter for Efficient Energy Management
US$
85.00
-
135.00
1 Piece
(MOQ)
Remote Reading 100A Direct Input Kwh En 13757-2 Mbus Energy Meter
US$
42.00
-
55.00
1 Piece
(MOQ)
1/4
Hangzhou Antin Power Technology Co., Ltd.
13 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
AT100G DIN Rail Single Phase WiFi Remote Electricity Digital Energy Meter
US$
15.00
-
25.00
100 Pieces
(MOQ)
Factory AT100G-YF Single Phase Electric Energy Prepaid Meter, DIN Rail RS485 Support Remote Recharge Prepayment Kwh Meter
US$
20.00
-
40.00
100 Pieces
(MOQ)
Advanced Smart DIN Rail Energy Meter for Remote Monitoring Solutions
US$
15.00
-
25.00
100 Pieces
(MOQ)
ATZ2000 Intelligent Kwh Meter, Electric Watt Meter, RS485 Intelligent Remote Communication Energy Meter
US$
30.00
-
50.00
100 Pieces
(MOQ)
1/4
Zhejiang Tainihan Electrical Technology Co., Ltd.
11 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Digital Display Three-Phase Power Meter, Remote Reading for Factory Distribution Systems
US$
6.574
500 Pieces
(MOQ)
Smart Single Phase Energy Power Kwh Meter with Remote Monitoring
US$
17.00
500 Pieces
(MOQ)
3-Phase Prepaid Energy Meter Smart Power Analyzer Anti-Tamper Remote
US$
3.953
500 Pieces
(MOQ)
DIN Rail Meter Remote Reading, ISO for Industrial Substations
US$
6.574
500 Pieces
(MOQ)
1/4
Beijing Hezhong Huineng Electric Technology Co., Ltd
13 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Advanced Smart Energy Meter for Easy Remote Electricity Management
US$
25.00
-
30.00
1 Piece
(MOQ)
Efficient 15-60kw Industrial Power Meter with Remote Monitoring Capability
US$
25.00
-
30.00
1 Piece
(MOQ)
Two-Way Monitoring Prepaid Meter Ddsy277 on-Site LCD & Remote RS485 Data Reading Prepaid Function with Alarm & Remote Disconnect
US$
50.00
-
100.00
1 Piece
(MOQ)
Pm5350p Smart Meter with RS485 Port for Remote Monitoring and Control Applications
US$
600.00
-
700.00
1 unit
(MOQ)
1/4
NINGBO ZHIYITONG ENERGY TECHNOLOGY CO., LTD.
10 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Remote Reading Water Meter Pulse Output Lxsgy-15e1-50e1
US$
14.50
-
29.00
500 Pieces
(MOQ)
DN15mm Impulse Remote Reading Water Meter (10 liter/pulse)
US$
4.00
-
5.00
1,000 Pieces
(MOQ)
Dn15mm Remote Reading Water Meter with Pulse Output (10 liter/pulse)
US$
4.00
-
5.00
1,000 Pieces
(MOQ)
DN13mm Remote Reading with Pulse Output Water Meter
US$
4.00
-
5.00
1,000 Pieces
(MOQ)
1/4
Jiangsu Hualiu Instrument Co., Ltd.
14 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Tap Water, Sewage, Wireless Remote Transmission Electromagnetic Flow Meter
US$
162.00
-
890.00
1 set
(MOQ)
Steam Flow Meter Remote Type Temperature and Pressure Compensation Vortex Flow Meter
US$
152.00
-
900.00
1 set
(MOQ)
Air Natural Gas Swirl Precession Vortex Flowmeter with Wireless Remote Transmission
US$
280.00
-
2,680.00
1 set
(MOQ)
High Accuracy Wireless Remote RS485 Mudbus Pulse Transmission Gas Turbine Flowmeter
US$
485.00
-
2,225.00
1 set
(MOQ)
1/4
Ningbo Yuxing Water Meter Company Limited
30 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Woltman Brass Water Meter with Remote Reading in Wooden Case
US$
45.00
-
47.00
1 pieces
(MOQ)
Premium Tap Water Meter with Remote Monitoring and Wooden Enclosure
US$
45.00
-
47.00
1 pieces
(MOQ)
2025 DN15 Multi Jet R160 Accuracy Brass Water Meter with Remote Reading Line
US$
14.00
-
15.70
1 Piece
(MOQ)
DN15 Multi Jet Plastic Body Water Meter with Pulse with Remote Reading Line WiFi
US$
8.20
-
9.70
1 Piece
(MOQ)
1/4
Lianyungang Weizidom Meter Technology Co., Ltd.
2 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Cost-Effective Electromagnetic Ultrasonic Flow Meter with Remote Monitoring and Online Datatransmission Flow Meter
US$
165.00
-
199.00
100 Pieces
(MOQ)
DN100 4" Remote Data Transmission and High-Flow Sensitivity Easy Maintenance Flanged GPRS Water Meter
US$
135.00
-
140.00
20 Pieces
(MOQ)
Valve Controled Brass Industrial Ultrasonic Smart Intelligent Remote Prepaid Remote Control by Lora/Lorawan/4G Water Meter
US$
45.20
-
79.00
50 Pieces
(MOQ)
Factory Direct Sale DN10-DN3000mm Compact and Remote Air Oxygen Insertion Type Thermal Gas Mass Flow Meter
US$
300.00
1 Piece
(MOQ)
1/4
ACREL CO., LTD.
23 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Acrel Adw210-D10-3s Digital AC Power Consumption Remote Data Energy Meter
US$
238.70
1 Piece
(MOQ)
Smart Home System WiFi Smart Energy Meter Remote APP Control Anytime Anywhere Control Smart Home
US$
134.80
1 Piece
(MOQ)
Acrel Adw300 3-Phase AC Watt Meter Remote WiFi Monitoring Efficient
US$
100.00
1 Piece
(MOQ)
Acrel Brand 3 Phase DIN Rail Meter Adw210 for Remote Power Monitor
US$
300.00
1 Piece
(MOQ)
1/4
WEIHAI KUNKE FLOW INSTRUMENT CO., LTD.
5.0
Send Inquiry
High Precision Liquid Vortex Flow Meter with RS485 Wireless Remote Transmission 4-20mA Current Output Dual Power Supply CE
US$
200.00
-
1,500.00
1 Piece
(MOQ)
Wireless Remote Electromagnetic Flow Meter with RS-485 Communication Protocol Device European Standard Flange Type 4-20mA 3.6/24/220V 304ss 316ss CE
US$
225.00
-
1,750.00
1 Piece
(MOQ)
High Precision New R&D L-Shaped Meter with Wireless Remote Transmission Function Can Be Used as a Split Vortex Street
US$
200.00
-
1,500.00
1 Piece
(MOQ)
DN200mm Intelligent Vortex Flow Meter Manufacturer Low Price, High Quality and High Precision Flow Meter with Wireless Remote Transmission Function CE
US$
200.00
-
1,500.00
1 Piece
(MOQ)
1/4
Kaifeng Chentong Automation Technology Co., Ltd.
Manufacturer/Factory
Send Inquiry
Split/Remote Electromagnetic Flowmeter Acid-Base Chemical Slurry Wastewater Liquid Conductive Medium Sewage Electromagnetic Flow Meter
US$
140.00
-
160.00
10 pcs
(MOQ)
Intelligent Remote Wireless Electromagnetic Flow Meter Sewage and Wastewater Split Integrated Measuring Instrument Factory
US$
140.00
-
160.00
10 pcs
(MOQ)
Modbus High Accuracy DN10-2000mm Compact Electromagnetic Flow Meter for Conductive Liquid
US$
140.00
-
160.00
10 pcs
(MOQ)
High Accuracy New Magnetic Flowmeter 32 mm 4-20mA 316 Stainless Steel Split Type Electromagnetic Flowmeter with Data Logging
US$
140.00
-
160.00
10 pcs
(MOQ)
1/4
Aister Instrument (Shanghai) Co., Ltd.
Send Inquiry
Remote Magnetic Flowmeters Flow Meter Display Flowmeter Electromagnetic DN200 Flow Meters
US$
279.00
-
800.00
1 Piece
(MOQ)
Rubber Liner Flow Meter None Full Pipe Magnetic Flowmeter with Remote LCD Display
US$
279.00
-
800.00
1 Piece
(MOQ)
Remote Ultrasonic Level Transmitter Ultrasonic Level Meter with RS485 Modbus
US$
159.00
-
800.00
1 Piece
(MOQ)
SS316 Flange Gas Mass Flow Meter Remote Converter Gas Mass Thermal Flow Meters
US$
209.00
-
2,000.00
1 Piece
(MOQ)
1/4
Shandong Gangwan Electric Technology Co., Ltd
2 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Smart Meter Remote Diagnosis: Reduce Maintenance Time & Costs
US$
2.50
-
3.20
1 Set
(MOQ)
Industrial Factory Electric Meter, Three-Phase Four-Wire Smart, Remote Meter Reading Meter
US$
2.50
-
3.20
1 Set
(MOQ)
Single-Phase Smart Electricity Meter, Household Wireless, Remote Monitoring and Meter Reading Meter
US$
2.50
-
3.20
1 Set
(MOQ)
Special-Purpose Electric Meter, Single-Phase/Three-Phase Optional, Remote Meter Reading Prepaid Smart Meter
US$
2.50
-
3.20
1 Set
(MOQ)
1/4
Tianjin Yiman Instrument Technology Co., Ltd.
12 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Digital LCD Display Wireless Remote transmission Swirl Gas Precession Vortex Flow Meter
US$
300.00
-
1,200.00
1 Piece
(MOQ)
Wireless Remote Transmission Digital Oxygen Hydrogen Gas Flow Meter
US$
300.00
-
1,200.00
1 Piece
(MOQ)
Remote Type Gear Flow Meter for Liquid Oil Fuel Measurement
US$
450.00
-
650.00
1 Piece
(MOQ)
Digital Remote Type RS485 Liquid Electromagnetic Flow Meter
US$
240.00
-
2,260.00
1 Piece
(MOQ)
1/4
Wuhan San Fran Electronics Co., Ltd.
28 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Smart Remote Reading Nb-IoT Water Meter
US$
30.00
-
33.00
100 Pieces
(MOQ)
Digital Remote Reading Cold / Hot Water Meter with Valve
US$
60.00
-
80.00
1 Piece
(MOQ)
Wireless Nb-Iot Smart Remote Transmission Gas Meter
US$
80.00
1 Piece
(MOQ)
Remote Meter Transmission Smart Water Meter with Valve Control
US$
60.00
-
80.00
1 Piece
(MOQ)
1/4
Kaifeng Chuangxin Measurement&Control Instrument Co., Ltd.
17 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Wireless Remote Transmission Function Turbine Flow Sensor Meter Turbine Flowmeter
US$
328.00
-
338.00
1 Piece
(MOQ)
High Precision Hydrogen Oxygen Wireless Remote Gas Vortex Flow Meter Flowmeter
US$
328.00
-
338.00
1 Piece
(MOQ)
Flange Clamp Remote 4-20mA RS485 Water Fuel Diesel Gasolineturbine Flow Meter Flowmeter
US$
328.00
-
338.00
1 Piece
(MOQ)
Intelligent Conductive Liquid Remote Type Electromagnetic Flow Meter Sewage Air-Conditioning Water Cooling Heat Meter
US$
428.00
5 sets
(MOQ)
1/4
Beijing ZhongRuiZhiCheng Technology Co., Ltd.
Send Inquiry
High Accuracy Remote Type Vortex Flow Meter
US$
60.00
-
89.00
1 Piece
(MOQ)
Hart/ RS485 Remote Type Electromagnetic Water Flow Meter
US$
85.00
-
105.00
1 Piece
(MOQ)
E8000fdr Remote Reading Type Electromagnetic Flowmeter
US$
85.00
-
95.00
1 Piece
(MOQ)
Hart 4-20mA Pressure Transducer /Pressure Transmitter Price
US$
38.00
-
42.00
1 Piece
(MOQ)
1/4
Jiangsu Jiechuang Science And Technology Co., Ltd.
21 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Digital Condensate Water Electromagnetic Flow Meter Remote Magnetic Flow Meter for Water Softener
US$
399.00
-
699.00
3 Pieces
(MOQ)
Dh1000 Stainless Steel Remote Type Electromagnetic Flow Meter Customizable OEM Support
US$
399.00
-
699.00
3 Pieces
(MOQ)
China Digital GPRS Irrigation Ultrasonic Water Flow Meter Ultrasonic Remote Reading Flow Meter
US$
249.00
-
299.00
5 Pieces
(MOQ)
Air Oxygen Compressed Air Modbus Remote Thermal Gas Mass Flow Meter Thread DN20 Thermal Gas Mass Flow Meter RS485 CO2 Flow Meter
US$
649.00
-
1,999.00
5 Pieces
(MOQ)
1/4
1
211
Hot Products
Water Meter
Frequency Meter
Gas Meter
Level Meter
Smart Water Meter
Intelligent Meter
Hot Water Meter
Smart Meter
Related Manufacturers & Supplier
Wireless Meter Factories
Wireless Remote Meter Factories
Remote Water Meter Factories
Remote Gas Meter Factories
Remote Type Level Meter Manufacturers
Flow Meter Manufacturers
Cold Water Meter Manufacturers
Prepaid Meter Manufacturers