HSS Spiral Groove 4-12,4-20,4-32mm Ngwunye nzọụkwụ maka ọrụ igwe.
1.Spiral Groove Design na-eme ka mgbawa ngwa ngwa wepụ.
2.Suitable maka oghere oghere na ihe dị iche iche: n'ime 3mm / 0.12 inch (Iron Plate, Copper Plate, Aluminum Plate); n'ime 5mm / 0.2 inch (osisi, PVC mpempe akwụkwọ, mkpuchi mkpuchi).
Dee ozi gị ebe a ziga anyị ya