bi-color level and glass gauges design, engineering, manufacturing, procurement of materials and bought out components, assembly at bicolor level and glass gauges , bi-color level gauge , bi-color level gauge , bi-color level gauge , bi-color level gauge , bi-color level gauge , bi-color level gauge , bi-color level gauge , bi-color level gauge , bi-color level gauge , glass gauge , glass gauge , glass gauge , glass gauge , glass gauge , glass gauge , glass gauge , charges for services for site supervision during erection & commissioning and training to client personnelat nrl site , supervision charges (other details as per the material requisition) unit rate forsupervision sevices of erection and commissioning / performance testing & training chrages as per details mentioned in material requisition for quoted items as per enclosed instructions to vendor per diem charges upto 8 hrs on normal working days. ( bidders to quoteunit rate for diem charges ) , unit rate forsupervision sevices of erection and commissioning / performance testing & training chrages as per details mentioned in material requisition for quoted items as per enclosed instructions to vendor overtime rate per hour (beyond normal 8 hours on normal working days). ( bidders to quote over timerate per hour ) , unit rate forsupervision sevices of erection and commissioning / performance testing & training chragesas per details mentioned in material requisition for quoted items as per enclosed instructions to vendor overtime rate per hour for work on weekly off days / holidays (as applicable to refinery site). ( bidders to quote over timerate per hour ) => limited