Dear sirs/Madam We’re a Chinese company manufacturing rubber and polyurethane expendables for mud pumps and oil pumping units,such as pistons and piston inserts, valve inserts,seals,packings,etc. We began to sell the above products in China mailand since 1996 and export through distributors in Houston since 1999. We’re ready to expand our production and export sales and learn your company through your web site. Please contact us if you’re interested in purchasing mud pump parts from us. We provide Quality and Inexpensive products and services to our custormers.