Metal material bending test is an important item when raw materials come to factory in boiler and pressure vessel manufacturing trade. reletive pensonals shoud pay attention to the standard revises.

• 金属材料的弯曲试验是锅炉压力容器制造行业进行原材料入厂检验的一项主要检查项目。国际的修订应引起从业人员的重视。