短語詞組短語tubular knitted goods 圓形針織物downhole tubular goods 井下管材tubular goods engineering 石油管工程petroleum tubular goods 石油管材steel tubular goods 鋼制管材tubular goods detail 圓筒織物tubular goods standards 管材標(biāo)準(zhǔn)oil country tubular goods 石油管材;石油專用管材;石油國家管道產(chǎn)品;越南的石油管材oil tubular goods 石油管材 返回 tubular goods