Saint-Gobain Canalisation manufactures 1.7 million tons of ductile iron pipes, laid 15,000km of PAMTM pipeslines worldwide every year.是什么意思_Saint-Gobain Canalisation manufactures 1.7 million tons of ductile iron pipes, laid 15,000km of PAMTM pipeslines worldwide every year.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句