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RBM frog is the abbreviation of Rail bound Manganese Frog and SMSG frog is the abbreviation of Solid Manganese Self-Guarded frog, these two kinds of frogs are widely sold to the NA market. We’re exporting those frogs for 90RA rail, 115RE rail and 136RE rail per AREMA specification all the time.
For special requirement, these RBM frog and SMSG frog can be explosive or non-explosive, which should be specified by the customer.
Besides, there’s another type which is Rigid Bolted Manganese Flat Top Frog, this is normally used as an alternative of RBM frog in heavy low speed railway lines.
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.