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橡胶 管道接口用密封圈制造质量的建议 疵点分类与类别
Rubber--Recommendations for the workmanship of pipe joint rings--Description and classification of imperfections
价格:¥0.00
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管法兰垫片 压缩率及回弹率试验方法
价格:¥0.00
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液压气动用0形橡胶密封圈 沟槽尺寸
Housing dimensions for O-ring elastomer seals in hydraulic and pneumatic applications
价格:¥0.00
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辊压法无石棉纤维垫片材料
Compressed non-asbestos fibre gasket materials
价格:¥0.00
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