... chemical filament precisely, such as high low elater, terylene, pure silk, spun silk and etc, and WSF618B Precise WinderApplied rangeThe WSF618B is applied ... chemical filament precisely, such as high low elater, terylene, pure silk, spun silk and etc, and it mainly used in the winding ... ensure well forming;l The convenient put of reeled silk and linear silk design ensure well forming of winding;l The ...