DIN 1912-2
Graphical Representation of Welded, Soldered and Brazed Joints; Working Positions, Slope, Rotation
废止
发布日期 :
2001-09-01
实施日期 :
DIN 1912-3
Symbolic representation of welded, soldered and brazed joints on drawings; Surfacing
废止
发布日期 :
2001-08-01
实施日期 :