Profile: Melco Blowout Preventer Specialties develops replacement parts for blowout preventers. We manufacture ram shafts, locking screws, pistons, cylinders, door bolts and metal parts for Cameron, Shaffer, Hydril and WSI blowout preventers. Our product line includes packing units, ram rubbers, pipe wipers, production rubbers, derrick climbers and mud buckets. We also offer replacement parts for valves, rotary torque wheel assemblies, Saf-T-Slides, rotating heads, choke valves and accumulators.