According to the standard's requirements, test piece for qualification of welding procedure and for product welding should be carried out various bending test.
焊接工艺评定试板和产品焊接试板，按标准要求都要进行弯曲试验。
According to the standard's requirements, test piece for qualification of welding procedure and for product welding should be carried out various bending test.
焊接工艺评定试板和产品焊接试板，按标准要求都要进行弯曲试验。
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