one tension test shall be taken from one forging per heat in each heat-treatment charge

问题描述:

one tension test shall be taken from one forging per heat in each heat-treatment charge

对每个热处理批次,每炉取一个锻件样品做拉伸试验.
不是很确定“heat treatment charge”,charge本意是费用等,只能认为是每个批次.供参考,希望有所帮助!