I-pneumatic discharge ball valve
I-pneumatic discharge ball valve
1,Dizayina futhi wenze:GB/T12237-1989;
2,Ukuhlola nokuhlola:GB/T13927-1992;
3 ,Fuxhumano oluqinile:GB/T9115.1-2000.
4,Ubukhulu bobuso nobuso:JD-2002.
Bhala umyalezo wakho lapha futhi usithumelele wona