1 GB12459 Steel butt-welded seamless steel pipe
2 GB/T13401 Steel plate butt welding pipe fittings
3 GB/T14383 Forged Steel Socket Welding Fittings
4 GB/T14626 Forged Steel Threaded Fittings
5 GB/T10752 Marine steel pipe butt welding joint
6 GB*694 expansion joint
7 GB2506 Marine Lap Joint Flanges
8 GB10746 Marine butt-welding steel flange
9 GB9112-9131 Steel Pipe Flanges and Flanged Gaskets
10 GB/T12465 Loose-sleeve expansion joint for pipelines
11 GB/T14414 Socket type pipe joint
12 SH3065 Technical Standard for Sharp Bends in Petrochemical Tubular Furnaces
13 SH3406 Steel Pipe Flanges for Petrochemical Industry
14 SH3408 Steel butt-welding seamless pipe fittings
15 SH3409 steel plate butt welding pipe fittings
16 SH3410 forged steel socket welding pipe fittings
17 SY5257 Petroleum and Natural Gas Industry Standard
18 HGJ10 (HG/T21634) forged steel socket welding pipe fittings
19 HGJ514 (HG/T21635) Seamless butt-welding pipe fittings made of carbon steel and low alloy steel
20 HGJ528 (HG/T21631) Steel Seamless Butt-Welded Pipe Fittings
21 HGJ529 (HG/T21632) Steel Socket Weld, Threaded, and Butt Weld Pipe Fittings
22 HG20592-20635 Steel Pipe Flanges, Gaskets, and Fasteners
23 GD87-1101 Typical Design Manual for Steam and Water Piping Components and Parts in Thermal Power Plants
24 DL/T515 Power Station Bend
25 DL/T695 Steel Butt-welding Pipe Fittings for Power Stations
26 SY/T0510 Steel butt-welding pipe fittings
27 SY5257 steel elbow
28 ISO3419 Butt-welding pipe fittings for non-alloy steel and alloy steel
29 ISO5251 stainless steel butt-welding pipe fittings
30 ASME B16.9 factory-made forged steel butt-welding pipe fittings
31 ASME B16.5 Pipe Flanges and Flanged Fittings
32 ASME B16.11 Socket Weld and Threaded Forged Steel Fittings
33 ASME B16.28 Forged Steel Butt-Welding Elbows and Return Bends with Small Radius
34 MSS SP-43 forged stainless steel butt welding pipe fittings
35 MSS SP-75 forged butt-welding pipe fittings
36 MSS SP-79 Socket Weld Reducer Insert
37 MSS SP-83 3000-pound class steel socket weld and threaded union
38 MSS SP-95 Reducing Pipe and Round Plug Head
39 MSS SP-97 Integrally reinforced socket weld, threaded, and butt weld ends
40 JPF SP001 stainless steel flange adapter for piping
41 JIS B2311 General-Purpose Steel Butt-Welding Pipe Fittings
42 JIS B2312 steel butt-welding pipe fittings
43 JIS B2313 steel plate butt welding pipe fittings
44 JIS B2316 steel socket weld fittings
45 DIN 2605 Steel butt-welding pipe fittings - Elbows and bends
46 DIN 2615 Steel butt-welding pipe fittings - Tee
47 DIN 2616 Steel butt-welding pipe fittings Reducer
48 DIN 2617 Steel butt-welding pipe fittings - Pipe cap
49 CBM 1129 Expansion Joint
50 H67 General Design Standard for High-Pressure Pipes, Pipe Fittings, and Fasteners
51 GB150 Steel Pressure Vessels
52 GB233.1-50 Chemical Analysis Scheme for Steel and Alloys
53 GB10561 Micrographic Method for Evaluating Non-Metallic Inclusions in Steel
54 GB/T228 Metallic materials - Tensile testing at ambient temperature
55 GB/T229 Metallic materials - Charpy notch impact test method
56 GB/T231 Metallic Brinell Hardness Test Method
57 GB/T232 Metallic materials - Bend test
58 GB226 Method for acid etching test of macrostructure and defects of steel
59 GB4334.1-9 Test Method for Intergranular Corrosion Tendency of Stainless Steel and Acid-Resistant Steel
60 JB755 Technical Conditions for Pressure Vessel Forgings
61 JB4708 Qualification of Welding Procedures for Steel Pressure Vessels
62 JB4709 Welding Procedures for Steel Pressure Vessels
63 JB4730 Nondestructive Testing of Pressure Vessels
64 GB/T13384 Packaging of pipe fittings.