用“seamless steel pipe”造句大全，seamless steel pipe造句

The suspension framework was welded by the seamless steel pipe, the hand crane and suspension framework are fixed on the suspension coop.

Liaocheng seamless steel pipe business experts said that the progress Rio Tinto, the Ministry of Foreign Affairs has been described in detail.

Liaocheng seamless steel pipe business experts said that the first half of the approximately 50% of production is sold in the spot market.