SJ T 10161.7-1991 真空橡胶密封平面法兰.“O”形橡胶密封圈尺寸.pdf

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CB 1236-1995 鱼雷用O形橡胶密封圈规格及密封结构设计方法.pdf

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JB T 6375-1992 气动阀用橡胶密封圈尺寸系列和公差.pdf

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