GB 15831-1995 Steel tube scaffold couplers

GB 15831-2006 Steel tube scaffold couplers

GB/T 3092 GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.2-2008 Sampling procedures for inspection by attributes—Part 2:Sampling plans indexed by limiting quality(LQ)for isolated lot inspection GB/T 2828.3-2008 Sampling procedures for inspection by attributes—Part 3:Skip-lot sampling procedures GB/T 2828.4-2008 Sampling procedures for inspection by attributes—Part 4:Procedures for assessment of declared quality levels GB/T 2828.5-2011 Sampling procedures for inspection by attributes—Part 5:System of sequential sampling plans indexed by acceptance quality limit(AQL)for lot-by-lot inspection GB/T 2828.10-2010 Sampling procedures for inspection by attributes—Part 10:Introduction to the GB/T 2828 series of standards for sampling for inspection by attributes GB/T 2828.11-2008 Sampling procedures for inspection by attributes—Part 11:Procedures for assessment of declared quality levels for small population GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB/T 196-2003 General purpose metric screw threads—Basic dimensions GB/T 95-2002 Plain washers—Product grade C GB/T 9440-1988 Malleable iron castings GB/T 9440-2010 Malleable iron castings GB/T 11352-1989 Carbon steel castings for general engineering purposes GB/T 11352-2009 Carbon steel castings for general engineering purpose GB/T 867-1986 Round head rivets GB/T 95-1985 Plain washers--Product grade C GB/T 196-2025 General purpose metric screw threads—Basic dimensions

ISO 4054-1980