2012 China best grounding clamp,double ear hose clamp High quality by ISO9001:2000 We can supply any other ... size of hold hoop 2012 China best grounding clamp,double ear hose clamp 1.made of iron2.surface treatment:zinc plated3 ... coat, hot-dip galvanized3) machining Process: Stamping , turning,tube bending, welding, milling, CNC lathe…4) usage of products: Furniture fitting, construction ...