[国外标准] DIN 2533-1976 Flange drilling
[国外标准] AS 3566.2-2002 Self-drilling screws for the building and construction industries Part 2 Corrosion re
[国外标准] SAE J2583-2002 Directional Drilling Planning and Mapping Nomenclature
[国外标准] JIS B1124-2003 Drilling screws with tapping screw thread
[国外标准] JIS B1059-2001 Drilling screws with topping screw thread-Mechanical and functional properties