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不锈钢内螺纹截止阀J11H/W (2012/5/13)
简介:j11h/w不锈钢内螺纹截止阀设计与制造标准: ●设计与制造:gb12233●结构长度:gb12221●螺纹连接尺寸:gb/t15918.1-93●检验与实验:gb/t13927
不锈钢内螺纹截止阀J11W (2012/5/13)
简介:j11h/w不锈钢内螺纹截止阀设计与制造标准: 设计与制造:gb12233结构长度:gb12221螺纹连接尺寸:gb/t15918.1-93检验与实验:gb/t13927j11h / w stainless steel threaded valve