969 标准查询与下载

DS 157:1958 15，20，25，32，40，50，70和80 mm直型煤气旋塞

The standard describes material and dimensions for straight gas cocks.

Straight gas cocks, 15, 20, 25, 32, 40, 50, 70, and 80 mm

DS 158:1958 20，25，32和40mmL形煤气旋塞

The standard describes materials and dimensions of angular gas codes.

L-shaped gas cocks. 20, 25, 32 and 40 mm

DS 24:1958 民用燃气用燃起水龙带的旋塞和燃气灶用燃气水龙带连接器

The standard describes the physical properties of manual operated gas valves equipped with hose stud for domestic use.

Cock for gas hoses for town gas and gas hose connectors for gas cookers

DS 141:1934 煤气表用连接器

The standard describes the construction and sizes of tube connections to gasmeters.

Couplings for gas meters