牵引装置检测
DLA MIL-T-36736-1971 牵引装置
This specification is mandatory for use by a l l Departmentsand Agencies of the Departmen
气制动连接器检测
UIC 830-1-1981 空气制动连接器加强层橡胶软管供货技术条件
Air brake connector reinforcement rubber hose supply techn