China H13 H-13 (1.2344, X40CrMoV5-1, SKD61, DC53) Forged Forging Steel Tbm Cutting Shield Tbm Disk Cutter/Roller Disc Cutter Rings, Find details about China Tbm Cutter, Shield Disc Cutter from H13 H-13 (1.2344, X40CrMoV5-1, SKD61, DC53) Forged Forging Steel Tbm Cutting Shield Tbm Disk Cutter/Roller Disc Cutter Rings