... : 20mm, 25mm, 32mm, 40mm, 50mm, 63mm, 75mm, 90mm, 110mm5. Color: White, Grey, Green6. Certification: ISO9001-2008.Advantage:1. Sanitary, non-toxic ... .2. Corrosion resistant, not scaling, no rust, anti-bacterial.3. Light weight, high strength and high impact strength.4. Lower cost ... .8. Piping system for other industries and agriculture. high quality white/grey/green ppr pipe fittings