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SQUARE CAST IRON / DUCTILE IRON MANHOLE COVER, CLASS A15,B125,C250,D400
| Speclification(mm) | Base Size(mm) | Clear opening(mm) | Depth of frame(mm) | Depth of insertion(mm) |
| 400X400 | 400X400 | 300 | 100 | 50 |
| 500X500 | 500X500 | 400 | 100 | 50 |
| 600X600 | 600X600 | 500 | 100 | 50 |
| 700X700 | 700X700 | 600 | 100 | 50 |
| 800X800 | 800X800 | 700 | 100 | 50 |
TAWIL-Taiyuan Water Industrial Co.,Ltdtel:0086 351 7239569
fax:0086 351 7233885
Sincerely look forward to your support and co-operation!
double triangular manhole cover&frames