CERTIFICATE Guangzhou Warehouse Production Base Production Center Guangzhou incoming material warehouse mamufacturing shop injecting molding and grinding room injecting molding workshop Drop Test Discharge Tester Swith Life Tester Cutter Head Magnificantion Tester Power Supply Accessories Tester Power Cord Bending Tester 2d-Like Tester Constant Temperature Drying Tester Rockwell Hardness Tester