Drill bolt holes on 1, HM-200*200 steel: set out the hole spacing, and require the template section deviation, hole center spacing and axis spacing to be less than or equal to 0.5 mm
2, girth weld must be straight, no undercut, slag inclusion, welding leakage.
3, galvanized embedded parts surface should be bright and clean, no sag.
4. The deviation of installation center line of embedded parts should be controlled to be less than or equal to 3mm, the horizontal height difference of installation surface of embedded parts should be controlled to be less than or equal to 2mm, and the elevation of installation surface of embedded parts should be controlled to be less than or equal to 2 mm..