1. Above 10 years professional manufurer. 2. CE,WRAS and ISO9001 certificate 3. D71X--10/16Z/Q/C 4.Size from DN 32 to DN12 we can make all kinds of valves, gate valve,check valve,butterfly valve,ball valve,globe valve and so on.1)standard: BS5163,BS5150,BS5155, DIN3352,DIN3202, ISO5752,AWWAC509,AWWAC515,AWWAC5042)material: ductile iron, grey cast iron,3) coating: fusion bonded epoxy coatings4) ...