流程

表C.61-概要的NDE方法为无缝和焊接管材级目视检查的主体（见10.14）壁厚测定超声波探伤通量泄漏检查涡流探伤磁粉检验一个1 2 3 4 5 6 7 H40，K55 J55, N80 Type 1 R N N N N’ N N80Q, L80 C95, M65 R R A A A A P110 R R A A A NA C90, T95, Q125 R R C B B B N = not required R = required A = one method or any combination of methods shall be used B = at […]