I plant predecessor was founded in 1990, mainly produces plumbing pipe fittings, in accordance with national standards.

我厂前身成立于1990年，主要生产水暖管件，根据国家标准生产。

youdao

I plant predecessor was founded in 1990, mainly produces plumbing pipe fittings, in accordance with national standards.

我厂前身成立于1990年，主要生产水暖管件，根据国家标准生产。

youdao