Seamless High Precision Cold Drawn Tube:Grade:ST 52.3 BK+SMetric sizeO.D: 30 to 300mm, Max length 12m.Straightness: 0.5 -1.0/1000Tolerance EXT: DIN 2391Tolerance INT: ISO H8,H9Typecold drawing, cold rolling, honed
High Precision Cold Drawn Seamless Tube