Sewn Open Mouth (SOM) Self-Open Sack (SOS) Pasted Open Mouth (POM) Satchel Bottom Double Roll Fold Metered Corner (DRFM) Pinch Bottom Open Mouth (PBOM) Webb Bottom Pinch Top (SSWBPT) Pasted Valve Stepped End (PVSE) Craig head Valve (CV) Webb Valve Pinch Bottom (WVPB) Webb Valve Squares (WVS) Webb Bottom Flush Cut Top (SSWBFC) Cement Bags Valve Type Bags Coloured Valve type Bags