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Tbm Disc Cutters Roller Double Disc Cutter with Hard Tungsten Carbide for Pipe Jacking Machinery/Tunnel Boring Machine Tbm, Find Details and Price about Tbm Disc Cutter Epb Tbm Tunnel Boring Machine from Tbm Disc Cutters Roller Double Disc Cutter with Hard Tungsten Carbide for Pipe Jacking Machinery/Tunnel Boring Machine Tbm - Chuanyan Drilling Tools (Shandong) Co., Ltd.