Wuxi Coreline Valve Co.,ltd is a Chinese professional valve manufacturer producing valves with the Germany Brand-CORE LINE. We mainly produce high quality butterfly valves , check valves and ball valves. My e mail is susie(at)coreline-vavle(dot)cn Certificates we hold FDA, WARAS, DVGW,KTW, PED-CE, SGS, ISO 9001, DNV,TZW, ISO14001,etc..