Satifiketi yatsopano ya UL UL10267 UL11627, UL10974, UL3773, UL3820, UL3994

Chingwe cha Wenchang chapeza satifiketi ya UL/CUL yatsopano, onjezani masitayilo UL10267, UL11627, UL10974, UL3773, UL3820, UL3932, UL 3994 mpaka E214500, 2 Insulation, mpaka pano, tili ndi zingwe 700.