宁波博戈阀门科技有限公司
会员
会员
1.设计、制造按GB/T12238-1989
1, design and manufacture according to GB/T12238-1989
2.结构长度按GB/T12221-2005
2 the length of the structure by GB/T12221-2005
3.连洁法兰：GB/T9113-2000
3 even clean flange: GB/T9113-2000
4.阀门检查和实验JB/T9092-1999
The 4 valve inspection and test JB/T9092-1999
