This standard specifies the terms and definitions, product classification and labeling, basic requirements, structure and assembly methods, technical requirements, inspection, test methods, and inspection rules of nano-modified polyvinyl chloride wheelless curtain rails (referred to as nano wheelless window rails). , logo, packaging, transportation and storage, quality commitment. This standard applies to curtain guide rails for indoor decoration, which are made of polyvinyl chloride resin and nano-modified materials as the main raw materials, and are composed of extruded profiles and injection molded pendants. This standard does not apply to electric curtain rails.