2019-11-11 14:14:17
sawchina
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BS EN ISO 6947-1997 welds-working positions-Definitions of angless of slope and rotation
BS EN ISO 6947-1997 傾斜和旋轉(zhuǎn)角度的焊接位置定義 下載地址:
鏈接:https://pan.baidu.com/s/13NpSisRN1jBjsZJObEgUQA |