GB/T 14383-2008 Forged fittings socket-welding and threaded (Text of Document is in English) - Beijing translation compay

Contents
Foreword
1 Scope
2 Normative Reference
3 Sorts and Code Numbers
4 Classes of Pipe Fittings
5 Special Connection Type
6 Connecting Pipe Size
7 order Contents
8 Shape, Size and Tolerance
9 Materials
10 Manufacturing
11 Heat Treatment
12 Inspection
13 Tests
14 Mark
15 Surface Protections and Package
16 Product Quality Certifications
Annex A (Informative)
Annex B (Normative) Dimension of Pipes Connecting with Pipe Fittings
Annex C (Normative) Additional requirement