Ningbo Tonghui Auto Parts CO., LTD is a professional automotive Piston Rod and Powder Metallurgy / Sintered Parts and Stamping Parts of shock absorber / strut / damper supplier from 2009. We provide good quality shock absorber components to Russia and Brazil and India and many Countries customers.For Piston Rod. Our month capacity is 500,000 Pcs from diameter 12.5mm to 28mm. Our testing equipment includes projector, micro hardednes testing machine, universial tensile machine, metallographic analyzer, thickness tester, salt spray testing machine. For Powder Metallurgy. Our month capacity is 800,000 Pcs for Piston and Base Valve and for Rod Guide. Our testing equipment includes projector, micro hardedness testing machine, universial tensile machine, metallographic analyzer. For Stamping Parts. Our month capacity is 300,000 Pcs for Under Bracket and Spring Seat and Anti Rusty Cover, and more other small parts. Our testing equipment includes projector, hardednes testing machine, metallographic analyzer. Trust Tonghui will give the best solution for all your shock absorber parts business. The good quality and price of shock absorber components have made us approved by BRICS customers and more. Hope can working with your company, welcome you to contact us for futher information or assistance.