中华人民共和国国家标准 (Guobiao — Mandatory National Standards)China权威分: 83
GB 20055
Air springs for railway vehicles
行业
Rubber
产品类别
General Rubber
关键词
["铁路","空气弹簧","railway","air spring","rubber"]
Air springs for railway vehicles
Rubber
General Rubber
["铁路","空气弹簧","railway","air spring","rubber"]