This part of TB/T 2775 specifies the model, structural dimensions, technical requirements, lock body markings, test methods, inspection rules, packaging, transportation and storage of the FSP04 type boxcar lock for railway transportation (hereinafter referred to as "boxcar lock") . This standard applies to boxcars and refrigerated trucks used for sealing.
TB/T 2775.1-2005 history
2005TB/T 2775.1-2005 Sealed lock for railway traffic Part 1: Covered wagon lock