Description
| Type | Size (mm.) | Code number | Price (Baht) |
| NRVA 15 INCL FLANGES | 15 | 020-2000 | 9,941.50 |
| NRVA 20 INCL FLANGES | 20 | 020-2001 | 9,941.50 |
| NRVA 25 INCL FLANGES | 25 | 020-2002 | 15,666.52 |
| NRVA 32 INCL FLANGES | 32 | 020-2003 | 15,666.52 |
| NRVA 40 INCL FLANGES | 40 | 020-2004 | 24,074.73 |
| NRVA 50 INCL FLANGES | 50 | 020-2005 | 24,074.73 |
| NRVA 65 INCL FLANGES | 65 | 020-2006 | 42,919.06 |
