- DI Grooved couplings, like MECH type 1N, 1NS, 1G, 1GS
- Material: ASTM A536,65-45-12
- Standard: AWWA C606
SURFACE TREATMENT
- Epoxy powder painting (colour numbers as RAL3000, RAL301, etc)
- Painting (colour numbers as RAL3000, etc)
- Others would be available upon clients’ request