Iwe-ẹri

Iwe-ẹri ọja

CQC-JD

UL

VDE-X2

KC-JY

ENEC-JD

IEC--JY

TUV

Iwe-ẹri eto

ISO 9001 2015

IOS9001

IOS14001

ISO 14001 2015

Aṣoju ti a fun ni aṣẹ

LoA ti Polytech International INC.

LOA ti Yingdian (Shanghai) Ipese Chain Co., Ltd.