GB/T 37400.11-2019 Heavy mechanical general technical specification—Part 11:Piping

GB/T 37400.1-2019 Heavy mechanical general technical specification—Part 1:Products inspection and test GB/T 37400.2-2019 Heavy mechanical general technical specification—Part 2:Flame cutting parts GB/T 37400.3-2019 Heavy mechanical general technical specification—Part 3:Welding parts GB/T 37400.4-2019 Heavy mechanical general technical specification—Part 4:Iron castings GB/T 37400.5-2019 Heavy mechanical general technical specification—Part 5:Nonferrous metal casting GB/T 37400.6-2019 Heavy mechanical general technical specification—Part 6:Steel castings GB/T 37400.7-2019 Heavy mechanical general technical specification—Part 7:Repair welding for steel castings GB/T 37400.8-2019 Heavy mechanical general technical specification—Part 8:Forgings GB/T 37400.9-2019 Heavy mechanical general technical specification—Part 9:Machining parts GB/T 37400.10-2019 Heavy mechanical general technical specification—Part 10:Assembling GB/T 37400.12-2019 Heavy mechanical general technical specification—Part 12:Painting GB/T 37400.13-2019 Heavy mechanical general technical specification—Part 13:Packaging GB/T 37400.14-2019 Heavy mechanical general technical specification—Part 14:Nondestructive test of steel castings GB/T 37400.15-2019 Heavy mechanical general technical specification—Part 15:Nondestructive test of steel forgings GB/T 37400.16-2019 Heavy mechanical general technical specification—Part 16:Hydraulic system

GB/T 37400.3-2019 Heavy mechanical general technical specification—Part 3:Welding parts GB/T 37400.12-2019 Heavy mechanical general technical specification—Part 12:Painting GB/T 324-1988 Welds-symbolic representation on drawings GB/T 324-2008 Weld symbolic representation on drawings GB/T 3765-1983 Specification for bite type tube fittings GB/T 3765-2008 24°cone connectors—Specification GB/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1:Parallel internal and taper external threads GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2:Taper internal and external threads GB/T 7307-2001 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads GB/T 12716-2002 Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on the threads GB/T 12716-2011 Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on threads GB/T 14383-1993 Forged steel socket welding pipe fittings GB/T 14383-2008 Forged fittings,socket-welding and threaded GB/T 14383-2021 Forged fittings,socket-welding and threaded GB/T 37400.1-2019 Heavy mechanical general technical specification—Part 1:Products inspection and test GB/T 37400.16-2019 Heavy mechanical general technical specification—Part 16:Hydraulic system