Design Reference

GB series

API series

Design Standard

GB/T12237

API 6D

ANSI B16.34

Flange-Connection

GB/T12221

API 6D

ANSI B16.10

Structural length

GB/T15188.1

API 6D

ANSI B16.10

Connecting flange

GB/T9113

ANSI B16.5. B16.47

Butt-welding ends

GB/T12224

ANSI B16.25

Test & Inspection

GB/T9092

API 6D

API598