A na-ejikarị ihe nleba anya plastik welding vacuum tester iji nwalee ịdịmma ịgbado ọkụ, mmetụta ịgbado ọkụ na nhazi ziri ezi nke isi ihe na-agbapụta n'akụkụ ebe nnwale mmụba enweghị ike ịrụ ọrụ ma ọ bụ tinye mkpara ịgbado ọkụ iji rụkwaa ụkọ na ntapu na ebe a na-ewu ụlọ.