Composite brake block is made of resin, asbestos, graphite, iron power and barium sulfaste.

According to the friction coefficient, the composite brake block can be made of high friction composite brake block and low friction composite brake block.

The advantage of the composite brake block is its good wear resistance performance and long life span, most importantly, the weight of the composite brake block is light which is only 1/3 of cast iron brake block.

Shanghai Bosheng Industries is specialized in the supplying of rails, turnouts and various rail fastening materials such as rail fishplate, tie plate, rail clips, screw spikes, rail anchors, rail shoulder, rail pads and so on.