... )and polyvinylidene fluoride(PVDF).They have a strong resistance to chemical corrosion, large void space and fluid capacity, low pressure drop, energy ... saddles, Super intalox, Cascade ring, Heilex ring, Conjugate ring, HQM flat ring, Teller Rosette, Hollow ball, Polyhedral ball, Cage ball and ... resistanceCorrosion resistant Compressive strength, N/mm≥6.0≥6.5≥7.0≥6.0≥8.0≥10.0 Plastic Heilex Ring ...