HG 20598-1997（编制说明）
Threaded steel pipe flanges (European system) (English Version)

Standard No.

HG 20598-1997（编制说明）

Language

Chinese, Available in English version

Published By

Professional Standard - Chemical Industry

Status

Be replaced 2009-07

Replace By

HG/T 20592-2009

Latest

HG/T 20592-2009