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
标准编号： DR 93020
标准类别：Draft
出版单位：Standards Australia
标准页数：0
标准简介
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.
替代本标准的新标准
