Fabricante de flanges de aço de liga de níquel ANSI B16.5, flanges monel, flanges inconel, flanges incoloy, flanges hastelloy, flanges WN, flanges LWN, flanges SW, flanges roscados, flanges cegos, então flanges, flanges de junta sobreposta, flanges de placa, rf, ff, rtj, tf face
- Zhengzhou Huitong Pipeline Equipment Co., Ltd.