This pipe is made of carbon steel (stainless steel, cast iron, plastic).

这管子是碳素钢(不锈钢、铸铁、塑料)制成的。

youdao

This pipe is made of carbon steel (stainless steel, cast iron, plastic).

这管子是碳素钢(不锈钢、铸铁、塑料)制成的。

youdao