First, the valve body leakage:
the reason:
1. The valve body has blisters or cracks;
2. The valve body is cracked during repair welding
deal with:
1. Polish the suspected crack and etch it with 4% nitric acid solution. If there is crack, it can be dis.......
2017 Chongqing National Auto Parts Fair met succes gehouden in 2018 Rongcheng opnieuw!
De 82nd (CAPF) Nationale Auto-onderdelenbeurs in 2017 werd van 27 t / m 29 oktober groots gehouden in het Chongqing Internation.......