Factory mwachindunji kugulitsa, maginito mipira.Ubwino wazinthu zathu:
1. Poyerekeza ndi ogulitsa ena omwe amagwiritsa ntchito N35 grade yaiwisi yaiwisi, fakitale yathu imagwiritsa ntchito kalasi ya N38 kuti iwonetsetse maginito amphamvu kwambiri.
2. Asanu zigawo nano utoto ❖ kuyanika kuonetsetsa pamwamba kwambiri cholimba kwa ana kusewera.
3. Tili ndi ma diameter osiyanasiyana ndi mitundu ya mpira, m'mimba mwake 3mm ndi 5mm ndi kukula kwabwinobwino, timasintha makonda osiyanasiyana amtundu uwu wa mpira wamaginito.