... are made from aluminum alloy,suitable for pipe connector/pipe fittings,such as gas station,water system. Material: aluminum alloy ... are made from aluminum alloy,suitable for pipe connector/pipe fittings,such as gas station,water system.Three types of ... 500 tons/month Welcome to ZheJiang Dongrun Casting Industry Co,.Ltd.ZheJiang Dongrun Casting Industry Company Co,.Ltd was built in 1995, but we have ...