This part of GB/T 985 specifies the groove form and size for steel welding. This section applies to the submerged arc welding process.
GB/T 985.2-2008 Referenced Document
GB/T 16672 Welds--Working positions--Definitions of angles of slope and rotation
GB/T 324 Weld symbolic representation on drawings*, 2008-06-26 Update
GB/T 985.2-2008 history
2008GB/T 985.2-2008 Recommended joint preparation for submerged arc welding
1988GB/T 986-1988 Basic forms and sizes of weld grooves for submerged arc welding
GB/T 985.2-2008 Recommended joint preparation for submerged arc welding has been changed from GB/T 986-1988 Basic forms and sizes of weld grooves for submerged arc welding.