Khola lamphaka lokhala ndi mawonekedwe owoneka bwino, kupanga seiko, zida zokongola, zapamwamba komanso zowolowa manja, ndiye chisankho choyenera kwa mphaka wanu.General kusankha mkulu khalidwe waya zitsulo, pamwamba pambuyo kupopera mbewu mankhwalawa, kuviika pulasitiki, electrophoresis, chrome plating, kanasonkhezereka, kutsanzira golide ndi njira zina zochitira ...
Werengani zambiri