A na-ejikarị eriri eriri carbide simenti eme ihe na ibe n'ibe PDC maka mkpọ ala na ngwuputa, a na-ejikwa ihe niile siri ike mee.A na-eji ya dị elu na-eguzogide iyi, ike dị elu na nguzogide corrosion.Ngwá ọrụ Kedal nwere ike ịmepụta ụdị dị iche iche nke cemented carbide threaded nozzles, ya bụ, e nwere ngwaahịa ọkọlọtọ sitere na ụlọ ọrụ ndị a ma ama na ụlọ ọrụ mmepụta ihe, ma nwee ike ịnakwere ọrụ ahaziri ODM na OEM.