Nodular cast iron sow slat floor 1.strong anticorrosion 2.Thickening floor, ... capacity 3.Efficient leak dung Nodular cast iron Leak dung sow slat floor1. strong corrosion resistant ability and rigidity, not ... technology,we shrink the leak aperture of plate at sow position to 8.5-9mm(At present only we ... large leak lock pigs feet and do harm to sow nipple.However the traditional size is 11-12mm,what ...