30 zvimedu zvemhando yepamusoro nitriding welding matafura zvinopedzwa, uye isu takagadzirira kupedzisa kunze kwenyika yakajairwa kurongedza emapuranga kuti tive nechokwadi chekuti zvigadzirwa hazvizobhurwa panguva yekufambisa.
Nguva yekutumira: Nov-16-2021