DR 93020被替代
Cast iron wedge gate valves for general purposes
出版：Standards Australia
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基本信息
標準編號： DR 93020
標準類別：Draft
出版單位：Standards Australia
標準頁數：0
標準簡介
Proposes requirements for valves of either inside screw, non-rising or outside screw, rising stem in a nominal size range of DN 50 to DN 300. The valves are generally handwheel-operated and not recommended for buried service.
替代本標準的新標準
