... GS, CE, EMC, UL certification High professional Power tools Angle grinder 125mm, AG5, angle grinder 5 inch,Zhejiang Zhongyou industry & trade Co., Ltd. ... of power tools, which includes Cut-off machine, Electric drill, Angle grinder, Marble cutter, Circular saw, Blower, etc. Since established ... why we have been awarded so many honors and certificates by bodies like GS, CE, EMC, UL and ISO9001 ...