Mandrel Bar Tianjin Binhai Longtai Technology Development Co., Ltd. Base Info Condition：NewMaterial：AlloyApplication：Metal Processing Machinery PartsSpecification：Material: H13, 4Cr5MoSiV1, X35CrMoV 05 Range of dOrigin：Tianjin Description Pre：All Kinds of Industrial Heterotypic Material Next：CNC Machining Part
