GB/T 13871.1-2022密封元件为弹性体材料的旋转轴唇形密封圈第1部分:尺寸和公差国家标准
英文:Rotary shaft lip-type seals incorporating elastomeric sealing elements—Part 1:Dimensions and tolerances GB/T 13871.1-...
英文:Rotary shaft lip-type seals incorporating elastomeric sealing elements—Part 1:Dimensions and tolerances GB/T 13871.1-...