The reasons causing socket pipes produced with EPC process to have defects of too big ellipticity, mould wall moving, mould shell collapsing, metal run-out and so...是什么意思_The reasons causing socket pipes produced with EPC process to have defects of too big ellipticity, mould wall moving, mould shell collapsing, metal run-out and so...在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句