综合
peek垫片，轴套，peek滚轮
PEEK轴套密封垫圈PEEK耐高温高压轴承轴套密封垫圈聚醚醚酮异形定制密封垫片
PEEK（聚醚醚酮）垫片、轴套、密封圈等航空、汽配、军工用料
供应PEEK密封圈PEEK阀座PEEK垫片轴套
上海供应PEEK制品-垫片/棒/阀座/垫圈/轴套 厂家
供应聚醚醚酮PEEK垫片轴套螺丝塑胶材料精密加工零件