Har ma da daidaitaccen casting yana da lahani, kamar rami na shrinkage, Trachoma, farfajiya na fracam, zuba rami;Yi zura daa wannan bangaren.

Hakanan zaka iya sauke samfurin a ƙasa, ku saurari sautin hadarin, yawanci sautin sawun simintin yana daɗaɗa,da mSauti mafi rauni!

A sansariWani yanki ne da aka yi ta hanyar jefa shi, wanda aka zubar da ƙira ko ƙirar da aka zuba tare da molten karfe. Tsarin da karfe aka narke cikin ruwa ya cika wasu buƙatu da aka zuba a cikin siliki mai tsafta, sannan kuma ana samun saiti (bangare) tare da kayan kwalliya, girma da kuma wasan kwaikwayon.

A Kagajiyanki ne da aka yiTa hanyar mantawa. AKagajiwani yanki ne wanda karfi da tasiri.Kagajihanya ce ta mirgewa tare da wasu kaddarorin kayan aikin, siffofi da girma ta hanyar amfani da matsin lamba a kan ƙarfe Billets don samar da nakasassu na filastik don samar da lalata filastik.