NF F18-102 铁路车辆-外轴颈的滚动轴承轴箱公差和表面粗糙度.
NF F18-102 Railway rolling stock-Roller bearing axle boses for outside axie journals-Tolerances-Surface finish.
中国防火网全国免费咨询电话:400-666-7290
网址:www.firete.com
...
NF F18-102 铁路车辆-外轴颈的滚动轴承轴箱公差和表面粗糙度.
NF F18-102 Railway rolling stock-Roller bearing axle boses for outside axie journals-Tolerances-Surface finish.
中国防火网全国免费咨询电话:400-666-7290
网址:www.firete.com
...