Mpweya wotulutsa mpira valve
Mpweya wotulutsa mpira valve
1,Kupanga ndi kupanga:GB/T12237-1989;
2,Kuyendera ndi kuyesa:GB/T13927-1992;
3 ,Fkugwirizana kwachedwaMtengo: GB/T9115.1-2000.
4,Kuyang'ana maso ndi masoChithunzi: JD-2002.
Lembani uthenga wanu apa ndikutumiza kwa ife