1.Micro Machining 2.SUS 304 Steel CNC Machining 3.SUS 304 Steel CNC Machining parts-VIS screw Product's Name:Maching parts-VIS screw 1, Material: X30Cr13 or 2Cr13; 2, heat treatment 3.precision cnc machining parts Product's Name:Maching parts-VIS screwTechnical Requirements: 1, Material: X30Cr13 or 2Cr13; 2, heat treatment: quenching HB250-280; 3, no note by internal thread tolerance class 6H, ...