Details: pontoon with all accessories ( size - l-30.0 m x b-9.0 m x d-1.5m) designing, supplying, testing materials (physical & chemical), design & pepare fabrication drawings, approval / inspection of the same by iwt surveyor dte, fabricate with approved electrode (esab make or equivalent ) at approved location all steel hull (8.00 mm is:2062:grade a& b) with deck fitting, c.i. fairleads, fix up the longitudinal & vertical fender with best quality steel fender (half round pipe) size 200mm dia., stainless steel railing consist of 38mm dia and 900mm height vertical, 50mm dia top rail, 3 (three) nos 19mm dia horizontal strainless steel pipe and base/cover plate with strainless steel grade 304, with all fitting & fixtures in accordance with approved drawing of pontoon. the fender are to be painted with 3 coats. internal structural members, vertical support, deck doubler in accordance with ship building practice & approved drawings. the pontoon will be launched after completion of fabrication a