stitched

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edge is folded and stitched with 2needle stitch,

edge is folded and stitched with 2 needle stitch,边缘折叠和缝合2针

understitched怎样翻译

内侧缝合

弯头DIN2605 STiTCHED是徳标什么标准?

STiTCHED ELBOWS 带螺纹口的弯头(接头) DIN 2605-1-1991 对焊钢管配件.第1部分:压力减缩系数弯头和弯管...http://www.anystandards.com/din/7/20081206/2364.htmlDIN 2605-2-1995 对焊管件.弯管.第2部分:全利用率的相关性...http://www.anystandards.com/din/7/20081206/2365.html