... copper,ron 2) semi-ball cock, cutout cock, ball core cock, anti-stone cock 3) train,railway ball cock1) material: stainless ... or as demand2) semi-ball cock, cutout cock, ball core cock, anti-stone cock3) train, railway, locomotive4) ISO9001:2008 certification5) delivery ... kinds of auto parts for train,locomotive,railway since 1972, such as ball cock, anti-stone cock,ball core cock, cutout cock, ...