HG/T 20530-1992
Welding lip sealing rings for steel pipe flanges (English Version)

Standard No.

HG/T 20530-1992

Language

Chinese, Available in English version

Release Date

1993

Published By

Professional Standard - Chemical Industry

Latest

HG/T 20530-1992

HG/T 20530-1992 history

• 1993 HG/T 20530-1992 Welding lip sealing rings for steel pipe flanges