Remark：1、Y-140 #13-#16 are all regular and are finished on face presser foot of leather skiving machines。
　　　　2、Y-140T is finished by Teflon,This kind of presser　foot do not heat as kiving slap-up hypoderrn.In Additional,It's better that presser foot sticked with Teflon tape which is easily brushed off when it operate.