This standard specifies the terminology, classification, types and models, basic parameter expression methods, requirements, test methods, inspection rules, signs, instructions for use, packaging, transportation, storage, etc. of back-up roller transport trailers, and establishes the requirements for back-up roller transport trailers. Necessary technical guidelines that trailers should adhere to.
T/HNJB 4-2019 history
2019T/HNJB 4-2019 Technical conditions for back-up roller transport trailers