... , RHBM, RHTM, RHTC, RWBM, RXBC, RXBM, RWTC, RWTM. We can design and manufacture special pumps, such as hi-viscosity crude oil ... made of different materials such as excellentcorrosion-resistant stainless steel, tungsten carbide hardness alloy and metalceramic. Inner packingWooden boxes tubing Pump