grooved ring 中文意思是什麼
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Flanges and their joints - dimensions of gaskets for pn - designated flanges - polymeric o - ring gaskets for grooved flanges
法蘭及其連接件. pn標示法蘭用墊圈的尺寸.有槽法蘭用聚合o形密封圈 -
Flanges and their joints - dimensions of gaskets for pn - designated flanges - part 8 : polymeric o - ring gaskets for grooved flanges
法蘭及其連接件. pn標示法蘭用墊圈的尺寸.第8部分:帶槽法蘭用聚酯o形密封圈 -
Flanges and their joints - dimensions of gaskets for pn - designated flanges - part 8 : polymeric o - ring gaskets for grooved flanges ; german version en 1514 - 8 : 2004
法蘭及其連接件. pn標示法蘭用墊圈的尺寸.第8部分:帶
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