‍‍Graphite engraving na'uraAmfani da ƙofar tsarin zane, breaking al'ada, duka da aminci da kyau; Amfani da Mihanna cast karfe, tare da akwatin nau'in symmetrical rib zane, cimma dukan zuwa inji kayan aiki ba deformation bukatun, babban horsepower karfi pumping motor, high inganci ƙura tsaftacewa ikon, ta atomatik share graphite ƙura a kan tubing, ba toshe tace tubing, za a iya dogon lokaci da kuma aiki.‍‍