... company staff to our factory visit negotiate business, Filter round water cap 1. Tpyes of rich;Range of OD: from ... of industryChemical industry, petroleum, metallurgy, environmental protection, textile, medical, water treatment and cleaner Technical parameters Serial numbermodel gapOutlook size0.2 ... a,304(0Cr18Ni9 b,321(1Cr18Ni9Ti) c,316L(00Cr17Ni14Ni14Mo2) d,317L(00Cr19Ni14Mo3) Filter round water cap