... : stainless steel,copper,ron or as demand2) semi-ball cock, cutout cock, ball core cock, anti-stone cock3) train, railway, locomotive4 ... , carton outsidewe are a manufacturer producing all kinds of auto parts for train,locomotive,railway since 1972, such as ball cock, anti ... cock,ball core cock, cutout cock, copper valve, iron valve,stainless steel valve, machining parts,brake pads and so on. ball cock