Automatic inspection of oil well tubing transverse defects and longitudinal defects is a key means to guarantee the quality of repaired oil well tubing and reduce accidents in oil extraction.
Hot rolling is the key factor for controlling transverse thickness difference, especially edge drop, of non - oriented silicon steel.
热轧是控制无取向硅钢成品横截面厚差偏大、尤其是边部减薄显著的关键工序。
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The crossing bar is one of the key parts of the bogie. It receives transverse direction, longitudinal direction and vertical load during the running of the vehicle.