... fittings, such as crankshaft, connecting rod, piston pin, chain wheel, aluminum wheel, valve, rock arm shaft, semi drive shaft, small shaft ... mold accessory and inner hole of mold.Features:1, power: high-frequency power than the tube 30% 20% saving compared with SCR ... protection is complete, no worries.3, the heating speed: no oxide layer, small deformation.4, small: light weight, installation of ...