Shenzhen Datang Dingsheng Technology Co., Ltd.

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Standard:	ISO 9001：2015
Number:	CN27124Q0273R0S
Issue Date:	2024-11-07
Expiry Date:	2027-11-06
Scope/Range:	Design,development and sales of PI polyimide film heating elements for consumer eleceric heating products.
Issued By:	Guangdong ZQ Certification Service Co.,Ltd

Standard:	CE
Number:	LH-220603012906
Issue Date:	2022-06-29
Expiry Date:	2025-06-29
Scope/Range:	the r&d and sales of heating films，heating sheets，electric heating products and flexible circuit boards
Issued By:	Shenzhen LH Testing Technology co.Ltd.

Standard:	ROHS
Number:	LH-220603012908
Issue Date:	2022-06-23
Expiry Date:	2025-06-23
Scope/Range:	the r&d and sales of heating films，heating sheets，electric heating products and flexible circuit boards
Issued By:	Shenzhen LH Testing Technology co.Ltd.

Standard:	Graphene far-infrared heating sheet
Number:	检测字第202206000187号
Issue Date:	2022-06-16
Expiry Date:	2025-06-15
Scope/Range:	the r&d and sales of heating films，heating sheets，electric heating products and flexible circuit boards
Issued By:	Jiangnan Graphene research institute

Standard:	FC
Number:	LH-220603012907
Issue Date:	2022-06-29
Expiry Date:	2025-06-29
Scope/Range:	the r&d and sales of heating films，heating sheets，electric heating products and flexible circuit boards
Issued By:	Shenzhen LH Testing Technology co.Ltd.

Shenzhen Datang Dingsheng Technology Co., Ltd.

Contact Person: MissLEI

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