SINCE 1997,HNA has been an integrated engineering & manufacturing specialist recognized worldwide for its unique USA Imported NBR/HNBR/Polyurethane Technology, as well as HIGH PRESSURE FORGING, CASTING,WORLD TOP CLASS HEAT TREATMENT & PRECISE MACHINING Technology, and its high quality products in the O&G industry, by designingand fabricating HNA  piston replacement parts including Piston Hubs, Plates, Snap rings, bushing and Renewable Rubbers and Polyurethane for Duplex, Triplex and Quintuplex pumps, which are 100% interchangeable to most of the global famous brands: Bomco, Honghua, TSC, Weatherford, Ellis Williams, Gardner Denver, Emsco , National, Oilwell, Ideco, Drillmec & other major types of models, and customized design and production available.

*  Product Series:

HNA-FE-P-R: HNA Assembled Piston Assembly Parts WITHOUT Replaceable Rubber/polyurethane: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-RR: HNA Assembled Piston Assembly Parts ,Replaceable NBR Rubber/HNBR Rubber/Polyurethane: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-BF: HNA Flex Lip Type Bonded Piston Assembly Parts , WITHOUT Single Duro Polyurethane, Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-BFD:HNA Flex Lip Type Bonded Piston Assembly Parts, WITHOUT Dual Duro Polyurethane, Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-BSD:HNA Slip Seal Type Bonded Piston Assembly Parts, WITHOUT Dual Duro Polyurethane, Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-DR:HNA Double Acting Assembled Piston Assembly Parts, WITHOUT Replaceable Rubber/Polyurethane: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L

HNA-FE-P-DBF:HNA Double Acting Flex Lip Bonded Piston Assembly Parts, WITHOUT  Polyurethane: Available Size: 3”(75mm) -- 8”(200mm),Series A,B,K,L