V-belts and V-ribbed belts. Uniformity of belts. Test method for determination of centre distance variation
三角带和三角带 皮带的均匀性 测定中心距变化的试验方法

2022-06-20

V-belts and V-ribbed belts — Uniformity of belts — Test method for determination of centre distance variation
V带和V带肋带.带的均匀性.中心距变化测定的试验方法

2022-05-19

V-belts and V-ribbed belts -- Test method for determination of centre distance variation
V带和V带肋带中心距变化测定的试验方法

2016-01-01