WE ARE MANUFACTURE!!! 1. Diameter: DN80-DN1200 2. Material: 21CrMo10, 42 CrMo PLEASE GIVE ME DETAIL FOR QUOTATION . We specialize in manufacturing series of centrifugal cast pipe moulds, seamless pipe molds and shaft parts, in which the cast pipe moulds has well-known at home and abroad, and have been exported to France, Russia and India. Shaft Processing Capability: Φ80-Φ200mm,length≤20m; Deep Hole Working Ability(indside diameter): Φ30-Φ1000mm, length≤16m;