我公司生产的胎圈钢丝用热轧盘条，产品标准为YB/T 170.2-2000及内控标准，主要牌号有C72DA、C82DA，主要用于拉拔普通强度和高强度胎圈钢丝。此钢种由于拉拔变形量大，要求钢中S、P等含量低、杂质少，轧制公差尺寸精确。我公司已大批量生产胎圈钢丝用热轧盘条，是国内几家主要胎圈钢丝生产企业的供应商。Under the standard of YB/T 170.2-2000 and enterprise inside control standard, the main grades of wire coil for tire bead wire are C72DA and C82DA.Because of the large deformation in the process of stretching for the tire bead wire of common and high strength, it is required to have less contents of S and P, less impurity and accurate rolling tolerance. QIS has become the supplier of some main domestic tire bead wire producers with large quantities of production of hot rolled wire coil of tire bead wire.