... tube, seamless steel tube, shaft with continuous keywayProduct Name: propeller metal shaftMaterials: grey iron, ductile iron, malleable iron,heat resistant iron ... ASTM, AISI, BS, DIN, JIS, NF Main production equipments: Wax injection, CNC-machine, machine-center, Heat treatment Furnace 1) We can ... micrometer, OD micrometer, multiple use angle mearuring tool, CMM etc. metal shaft tubular flexible shaft