1.Cast iron water strainer (JIS F7221) 2.cast iron , JIS FC20 3.Filter zinced JIS SS41 ... 5K,10K grades We had supplied the cast iron water/oil strainer to Japan market for many years. Included ... Sigle type, Double type, Y type, mud box , ... flanges etc.The body made with grey / ductile cast iron, The filters made ...