Utoto wa sulproof nipper ya thumba la mpira wammbuyo

Kodi zippers zamadzi zimapangidwa bwanji? Zippers zofiirira zimapangidwa pogwiritsa ntchito zinthu zapadera ndi maluso apadera. Nayi njira zazikulu zophatikizira kupanga zipper zam'madzi: 1. Tepi ya Zipiper: Gawo loyamba ndikupanga tepi ya Zilipper, yomwe ili ndi nsalu zomwe zili ndi mano a zipper. Kwa zipro wa madzi zipper, tepi ya zipper imapangidwa kuchokera ku zinthu zokhazikika, zosakhazikika ngati nylon kapena polyester ndi zokutira zamadzi kapena laminate. 2. Mano: Mano a zipper...