This standard specifies the terms and definitions, classification and specifications, requirements, test methods, inspection rules, marking, packaging, transportation and storage of multifunctional wall bed hardware. Among them, "requirements" include environmental protection requirements (including limited substance limits), main dimensions, shape and position tolerances, installation quality, appearance, pulling force, thrust, ground impact force, safety performance, noise, and auxiliary function load-bearing (including sofa load-bearing, bookshelf load-bearing , desk load-bearing), cycle rotation life, surface treatment quality and gas spring quality requirements.