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    Tianjin Grewin Technology Co.,Ltd

    • Address: Yingke Building, Hedong district,Tianjin, Tianjin, China
    • Email: Email
    • Phone: 862284943756

    Business description

    Tianjin Grewin Technology Co., ltd, who always pay great attention to its business philosophy "Quality and Honesty First".

    We have both design and produce advantages about toroidal transformer, magnetic transformer, EI chasis class mounting transformer , current transformer and clamp on sensor.

    Depending on continuous and innovative R&D, and efficient management, Grewin has attracted lots of talented people to work together, who provide effective production, accurate inspection testing and excellent sales service for customers.

    Grewin's manufacturing bases is located in Tianjin in China's north, which is Grewin's for transformers components products and using automated equipment like audio equipment, converter, power supply and meter, power monitoring etc.

    Also we have passed ISO9001, CE, SGS certification.

    Grewin Mission:

    Growing together side by side,

    Mutual success hand in hand.

    Grewin Values:

    Behaving: Fitness Confidence Honesty Gratefulness

    Acting: Profession Efficiency Team-work Passion

    Achievements at work, realization of your goal.



    We sincerely invite you to join us to create a bright future.

    Latest listings



    • 220v 12v 350va Waterproof Lighting Toroidal Transformer For Swimming Pool
      220v 12v 350va Waterproof Lighting Toroidal Transformer For Swimming Pool
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name : 220v 12v 350va waterproof lighting toroidal transformer for swimming pool lighting 105VA to 1000VA Waterproof Toroidal Transformer for outdoor lighting Certification: 1. raw materials have abtained VDE, UL, CE, ISO9000 approval . we guarantee ...

    • 220v 12v 600va Outdoor Ring Transformer For Pond Lighting
      220v 12v 600va Outdoor Ring Transformer For Pond Lighting
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name : 220v 12v 600va outdoor ring transformer for pond lighting 105VA to 1000VA Waterproof Toroidal Transformer for outdoor lighting Certification: 1. raw materials have abtained VDE, UL, CE, ISO9000 approval . we guarantee quality is the first. 2. ...

    • 3 75va 230v 7 5v Mini Transformer For Soalr Inverter
      3 75va 230v 7 5v Mini Transformer For Soalr Inverter
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name: 3.75va 230v 7.5v Mini transformer for soalr inverter 1. technical parameters. Miniature Toroidal Transformer Part No power parallal series Dimension Pin Pattern Weight VA L* W* H( MM) MM g GW20020 3.2 7 0.457 14 0.229 44.7* 44.7* 19.5 40.64 110...

    • 3 75va Small Toroidal Transformer 230v 8 4v For Solar Lighting
      3 75va Small Toroidal Transformer 230v 8 4v For Solar Lighting
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name: 3.75va small toroidal transformer 230v 8.4v for Solar lighting 1. technical parameters. Miniature Toroidal Transformer Part No power parallal series Dimension Pin Pattern Weight VA L* W* H( MM) MM g GW20020 3.2 7 0.457 14 0.229 44.7* 44.7* 19.5...

    • 100va Medical 220v 12v Toroidal Transformer For Bed Automaticlly
      100va Medical 220v 12v Toroidal Transformer For Bed Automaticlly
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name: 100va medical 220v 12v toroidal transformer for Medical bed automaticlly 1. technical parameters. < Toroid al Transformer Power Dimension ( mm) Efficiency % Current Weight GWB20VA 60* 25 >82 10mA 1.200.45kgs GWB30VA 65* 35 >84 10mA 1.2...

    • 2000va Step Up Toroidal Transformer For Power Supply
      2000va Step Up Toroidal Transformer For Power Supply
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name: 2kva 2000va step up toroidal transformer for power supply 1. technical parameters Toroidal Transformer Power Dimension ( mm) Efficiency % Current Weight GWB20VA 60* 25 >82 10mA 1.200.45kgs GWB30VA 65* 35 >84 10mA 1.200.50kgs GWB50VA 70* 4...



    • 220v 24v 50w Lighting Toroidal Transformer For Indoor
      220v 24v 50w Lighting Toroidal Transformer For Indoor
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name: 220v 24v 50w lighting toroidal transformer for indoor lighting 1. technical parameters Toroidal Transformer I Power Thermal Fuse Current Fuse Dimension ( mm) Approval Mark GWB25VA 135ºC 250V 2A 250V T 2A 80* 35 CE UL TUV CQC GWB30VA 135ºC 250...

    • 240v 0 70 90 0v 25w Audio Toroidal Transformer For Power Amplifier
      240v 0 70 90 0v 25w Audio Toroidal Transformer For Power Amplifier
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name: 240v 0- 70- 90- 70- 0v 25w audio toroidal transformer for power amplifier 1. technical parameters Toroidal Transformer Power Dimension ( mm) Efficiency % Current Weight GWB20VA 60* 25 >82 10mA 1.200.45kgs GWB30VA 65* 35 >84 10mA 1.200.50k...

    • 240v 0 90v 1 Single Phase 530va Audio Toroidal Transformer Fro Loudspeaker
      240v 0 90v 1 Single Phase 530va Audio Toroidal Transformer Fro Loudspeaker
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name: 240v 0- 90v- 1 single phase audio toroidal transformer fro loudspeaker 1. technical parameters Toroidal Transformer I Power Thermal Fuse Current Fuse Dimension ( mm) Approval Mark GWB25VA 135ºC 250V 2A 250V T 2A 80* 35 CE UL TUV CQC GWB30VA 13...

    • 220v 24v Er Type Insulating High Frequency Transformer For Computer
      220v 24v Er Type Insulating High Frequency Transformer For Computer
      General Electronics - Tianjin Grewin Technology Co.,Ltd - China - January 19, 2016 - contact company for price

      Name: 220v 12v 24v ER type insulating High Frequency transformer for Computer peripheral devices ER type Transformer Parameters Model PIN Dimension A B C+/ - 0.5 D+/ - 0.5 E F ER25.5 8 19.5 19.7 12.5 4 5 25.5 ER28 12 30.5 23 17.5 4 5 31 ER28 12 23.1 ...



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