It is used for the strength test of zipper flat pull, top stop, bottom stop, self-locking, open end flat pull, socket displacement, pull head pull tab combination, polyester silk, zipper webbing, etc.
【Scope of application】 It is used for the strength test of zipper flat pull, top stop, bottom stop, self-locking, open end flat pull, socket displacement, pull head pull tab combination, polyester silk, zipper webbing, etc. 【Related standards】 QB/T2171 QB/T2172 QB/T2173 etc.