ISO9001,CE, ROHS, SGS approval and IEC report

Tianjin Grewin Technology Co.,ltd, who always pay great attention to its business philosophy "Quality and Honesty First".
Grewin is specialized in the design and manufacture of wound components such as transformer,current sensors, chokes etc .
windely used in communications,electronics,meters,industrial control,medical equipments and other fields.We are also a provider of power meters and instruments locators. 85% of its products exported to America, Europe, and Asia etc.
We have passed ISO9001,CE,SGS approval and IEC report and developed good cooperative relationship with valued customers around product quality and value-added service along with the fast efficient solution.Grewin has won a lot of customer’s praise.

Products:

	Toroidal Power Transformer with Winding Machine	Basic Info Model NO.:GWB0655 Usage:Single-phase Transformer Frequency Characteristics:Power Frequency Shape of Core:Ring Brand:Grewin ...
	Power Amplifier Transformer for Audio Equipment	Basic Info Model NO.:30va 50va 100va 200va 500va 600va 650va 700va Usage:Audio Device, Amplifier, DVD, Loudspeaker Frequency Character...
	Single Phase Power Toroidal Transformer for Audio Amplifier	Basic Info Model NO.:GWB2348 etc. Usage:Audio Device, Amplifier, DVD, Loudspeaker Frequency Characteristics:High Frequency Shape of Cor...
	Power Supply Toroidal Transformer for Audio	Basic Info Model NO.:GWB2459 etc. Usage:Audio Device, Amplifier, DVD, Loudspeaker Frequency Characteristics:High Frequency Shape of Cor...
	Copper Core Distribution Toroidal Transformer for Audio	Basic Info Model NO.:GWB2348 etc. Usage:Audio Device, Amplifier, DVD, Loudspeaker Frequency Characteristics:High Frequency Shape of Cor...
	High Effiiency Audio Toroidal Transformer with ISO9001: 2015	Basic Info Model NO.:GWB2348 etc. Usage:Audio Device, Amplifier, DVD, Loudspeaker Frequency Characteristics:High Frequency Shape of Cor...
	Copper Toroidal Transformer for Audio Equipment	Basic Info Model NO.:GWB2459 etc. Usage:Single-phase Transformer Frequency Characteristics:Power Frequency Shape of Core:Ring Brand:Gr...
	110V-230V Epoxy Potting Audio Amplifier Toroidal Transformer	Basic Info Model NO.:GWB2459 etc. Shape of Core:Ring Brand:Grewin Type:Toroidal Transformer Input:220-240VAC Output:220-240VAC Power...
	High Efficiency Toroidal Transformer for Audio Equipment	Basic Info Model NO.:GWB1207 etc. Shape of Core:Ring Brand:Grewin Type:Toroidal Transformer Input:220-240VAC Output:220-240VAC Frequ...
	Silicon Steel Inverter Toroidal Transformer for Impedance Converter	Basic Info Model NO.:GWB1207 etc. Shape of Core:Ring Brand:Grewin Type:Toroidal Transformer Frequency:50Hz/60Hz Usage:Power, Electron...
	Manufacture 220V 24V Toroidal Transformer for Device Monitoring	Basic Info Model NO.:GWB1208, GWB1302, GWB1309 Insulating Medium:Class B or IP66 Installation:Power Toroidal Transformer China Magnetic...
	220V 24V Toroidal Transformer for Audio	Basic Info Model NO.: GWB Diameter=88mm,Height<=42mm: for Electronic Control Aluminum Wire: 5va Aluminum Enamel Wire Transformer: 5000va 10va: M...
	50va 24V Audio Toroidal Transformer with Low Loss Leakage	Basic Info Model NO.:50va 60va 80va 100va 105va transformer CE Toroidal Transformer for Lighting:Minature 30va Max 5000va Transformer ...
	50/60Hz Audio Toroidal Transformer with IEC Certification	Basic Info Model NO.:GWB1207 etc. Usage:Power, Electronic, Audio, Instrument, Rectifier, Frequency Characteristics:High Frequency Shape...
	220V 12V Power Audio Amplifier Toroidal Transformer for DVD	Basic Info Model NO.:30va 40va 50va 60va 100va 120va 150va 200va 300va Usage:Audio Device, Amplifier, DVD, Loudspeaker Frequency Chara...
	Power Amplifier Ring Transformer Audio Transformer Power Transformer	Basic Info Model NO.:105va 260va 540va 630va 900va 1300va 3200va 4600va Usage:Audio Device, Amplifier, DVD, Loudspeaker Frequency Char...
	Audio Transformer 100W for Telecommunications 220V 380V Transformer	Basic Info Model NO.:100va 300va 500va 1000va 2000va 4000va 6000va Usage:Audio Device, Amplifier, DVD, Loudspeaker Frequency Character...