bids are invited for mechanical - pipe ms erw with plain ends as per is-1239-part-1-2004, heavy duty,size: 1/2 (15nb), thickness 3.2 mm in standard length of 6 mtrs. , pipe ms erw - pipe ms erw with plain ends as per is-1239-part-1-2004, heavy duty,size: 3/4(20nb), thickness 3.2 mm in standard length of 6 mtrs. , pipe ms erw with plain end - pipe ms erw with plain ends as per is-1239-part-1-2004, heavy duty,size: 1(25nb), thickness 4 mm in standard length of 6 mtrs. , pipe ms erw with plain ends as per is-1239 - pipe ms erw with plain ends as per is-1239-part-1-2004, heavy duty,size: 1- 1/2(40nb), thickness 4 mm in standard length of 6 mtrs. , pipe ms erw with plain ends as per is-1239-part-1 - pipe ms erw with plain ends as per is-1239-part-1-2004, heavy duty,size: 2(50nb), thickness 4.5 mm in standard length of 6 mtrs. , pipes ms erw - pipe ms erw with plain ends as per is-1239-part-1-2004, heavy duty,size: 2-1/2(65nb), thickness 4.5 mm in standard length of 6 mtrs. , pipe - ms erw - pipe ms erw with plain ends as per is-1239-part-1-2004, heavy duty,size: 3(80nb), thickness 4.8 mm in standard length of 6 mtrs. , pipe --ms erw - pipe ms erw with plain ends as per is-1239-part-1-2004, heavy duty,size: 4(100nb), thickness 5.4 mm in standard length of 6 mtrs. , pipe ms erw with plain ends - pipe ms erw with plain ends as per is-1239-part-1-2004, heavy duty,size: 6(150nb), thickness 5.4 mm in standard length of 6 mtrs. , pipe ms erw with plain ends as per is-3589-2001 - pipe ms erw with plain ends as per is-3589-2001, heavy duty,size: 219.1mm od (200nb), thickness 6.3 mm in standard length of 6 mtrs. , ms erw - pipe ms erw with plain ends as per is-3589-2001, heavy duty,size: 323.9mm od (300nb), thickness 7.1 mm in standard length of 6 mtrs. , cs seamless - cs seamless as per astm a 106 gr. b,size: 1(25nb), sch.40 in standard length of 6 mtrs. total quantity : 1