... , 25mm, 32mm, 40mm, 50mm, 63mm,75mm, 90mm, 110mm5. Color: white, grey, green6. Certification: ISO9001-2008.Advantage:1. Sanitary, non-toxic ... . Convenient installation, reliable, recycled, environmental protection and safe.6. Long service life: more than fifty years under the normal pressure ... equipment.8. Piping system for other industries and agriculture. high quality white/green DN25 ppr fittings