QUANZHOU YOUDA HYDRAULIC CO,LTD established in Quanzhou, 
Fujian Province in 1998, is an industry leader in design engineering and 
precision manufacturing of POLYURETHANE , PTFE, and RUBBER 
components for hydraulic sealing applications. Seal Science has been 
designing custom seals and components for hydraulic sealing applications 
for many years. supports both OEM and end users in the plastic,
steel,ceramic,shoemaking , automotive, chemical, mechanism, commercial, 
and heavy industrial industries.