- cold drawn and normalized steel
- 2017-01-17 00:53
- Material: st45(20#)ck45(45#) Hardness: HB:st45 165-200 ck45 207-240 Roughness of inner hole: Ra less than 1.6um
- aisi 1020 steel tube
- 2016-10-26 02:09
- aisi 1020 steel tubeProduct varietyProcessing modeDiameterLengthLinearityPrecisionRoughness of inner holeCold drawn50-30