Hecker Werke - wave spring for 24 mm HN437 referenced wave spring for mechanical seal product produced by high technology. wave spring for 24 mm HN437 is the result of a far more developed technology compared to similar regular products. We are one of the few companies which can present an offer for this product. It produced result of tests of laborotory for years. Make an offer to us for wave spring for 24 mm HN437 please contact us.