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Imbumbulu ubungqina beglasi
Iglasi yobungqina bembumbulu ibhekisa kulo naluphi na uhlobo lweglasi eyakhelwe ukuma ngokuchasene nokungena kwiimbumbulu ezininzi. Kwishishini ngokwalo, le glasi ibizwa ngokuba yiglasi enganyangekiyo nembumbulu, kuba akukho ndlela inokwenzeka yokwenza iglasi ekumgangatho wabathengi enokuba bubungqina ngokuchasene neembumbulu. Zimbini iintlobo eziphambili zeglasi ebonisa ubungqina bembumbulu: Esebenzisa iglasi elaminethiweyo egqinsiweyo ngaphezulu kwayo, kunye neyoyisebenzisa polycarbonate thermoplastic.
