... Materials: Grey Casting Iron, Forging Steel, Alloy Steel. 2. Applicant: Locomotive using, using. 1. Materials: Grey Casting Iron, Forging Steel, Alloy ... Steel.2. Applicant: Locomotive using, using.3. Type: Wheel Brake Disc, Shaft Brake Disc4 ... per customer drawing & specification! Brake Pads used for railway&transport&railway tank,hopper,flat,wagon&train&freight ...