Plastic Pall Ring for Chemical Cooling Column Diameter 25mm, 38mm, 50mm, 76mm

China Plastic Pall Ring for Chemical Cooling Column Diameter 25mm, 38mm, 50mm, 76mm, Find details about China Plastic Pall Ring, Plastic Packing from Plastic Pall Ring for Chemical Cooling Column Diameter 25mm, 38mm, 50mm, 76mm