试用状况良好? 评定合格的焊接填充材料由焊接责任人或其授权责任人以书面形式通知生产运营部在产品上小批量试用,试用状况良好才能进入采购环节。 the responsible welding personnel or his/her authorized responsible personnel shall inform in writing the production department to conduct a small-scale production trial using the pre-qualified welding filler materials. proceed to purchasing the materials only if and when satisfactory results are obtained from the trial.查看更多