Our primary competitive advantages: *Flange : Made of high strength aluminum alloy and manufactured by high pressure forging process, so it has excellent rigidity and durability *Barrel : Made of high strength aluminum alloy and manufactured by extrusion forging, so it has high strength and precision *Welding : Welded with high precision using a kind of laziness protective atmosphere automatic welding method *Because of dynamic balancing function, a good compatibility with weaving machinery is maintained even through high-speed rotation *Through hard anodizing coating treatment, corrosion and surface scratching are entirely prevented. *Durability and precision are maintained even after several years utility