GB/T 27553.2-2011
ActiveSpecification for plastic-bronze-steel backing three-layer composite self-lubricating plates — Part 2: Plates with modified polyoxymethylene anti-friction layer
塑料-青铜-钢背三层复合自润滑板材技术条件 第2部分:带改性聚甲醛减摩层的板材
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