Tender For supply of m. s pipe erw type & pipe thickness should be as per dimensions confirming to is 1239 (part-1) -2004, , ms flanges matching to forges a 105, type: (sorf) -slip on raised face dim std: ansi b16.5, rating: 1 , m. s bend with radius (r= 1.5 d) of erw pipe & pipe thickness should be as per dimensions confirming t