JB/ZQ 4720-2006
Inside whorl valid length and drill (or car) hole depth (English Version)

Standard No.

JB/ZQ 4720-2006

Language

Chinese, Available in English version

Published By

Professional Standard - Machinery

Latest

JB/ZQ 4720-2006

Scope

This standard applies to the connection of non-sealed pipe threads and metric ordinary threads.

JB/ZQ 4720-2006 history

• 1970 JB/ZQ 4720-2006 Inside whorl valid length and drill (or car) hole depth