灰口铸铁管件
Gray iron castigs for pipe fittings
稀土灰口铸铁
rare earth grey cast iron
稀土灰口铸铁高压暖气片
radiator of rare-earth grey cast iron
薄壁灰铸铁件
thin wall gray iron casting
非热处理灰铸铁
Non-hest treatment grey iron
高强度灰铸铁
high strength gray irons
high-strength grey iron
hi-strength gray iron
High-strengh grey iron
high strength gray iron
High strength grey cast iron
高碳当量灰铸铁
High carbon equivalent gray cast iron
high CE gray iron
铬铜中磷灰铸铁
Cr-Cu micro-alloyed medium phosphorus grey iron