2019-11-11 14:46:08
  | sawchina 
 | DIN EN 1713-2002 焊縫的無(wú)損檢驗(yàn).超聲波檢驗(yàn).焊縫的表示特征Non-destructive testing of welds - Ultrasonic testing - Characterization of indications in welds 下載地址: 
	鏈接:https://pan.baidu.com/s/1dj0n0esIPdG9Gt3BQ_DbPA  | 
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