BS 10 Table E:
| Size | 115mm - 450mm |
| Class Standard Type | Standard Bore, Extra Bore, Blind BS 10 |
BS 4504 PN16:
| Size | 115mm - 1200mm |
| Class Standard Type | Standard Bore, Extra Bore, Blind BS4504, Stud End |
JIS:
| Size | 115mm - 750mm |
| Class Standard Type | 5K, 10K, 10K Blind |
Inquiry - Mild Steel(MS) Flanges For Welding