mechanical seals for 12/10 G-G gravel pumps material: stainless steel high performance ... of type M AH HH L (R)slurry pumps, G/GH gravel pumps, SP/SPR sump pumps, series ... ZGB(P)L slurry pumps, series ZJ (G)L slurry pumps, sand pumps, mud pumps, ash pumps, ... sewage pumps, desulphurization pump ,and other centrifugal horizontal and vertical pumps, and pump parts. mechanical seal for 12/10G ...