413 This pipe is made of carbon steel (stainless steel ,cast iron, plastic).
413 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。
413 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。