四虎永久免费影院在线-四虎永久免费影院-四虎永久免费网站免费观看-四虎永久免费观看-国产精品麻豆综合在线-国产精品麻豆一区二区三区

General valve series當前位置:主頁 > English(en) > PRODUCT > General valve series >

Name:
Dumping Ball Valve
No.
QF41F
Info：

 Dumping Ball Valve

Application Specification

1,The design and manufacture of standard criteria according to GB 12237

2,The connection flange standard criteria by JB81

3,Test and test according to GB/T9092 standard