supply of elbow equal (four type)elbow equal (four type),elbow equal 20mm as per drg.no. is 1239 (part 2) :2011 reaffirmed 2021 table-8, t hreads iso7-1, aisi304, packing instruction - pi020 ver 1.0 [ warranty period: 30 months after the date of delivery ] ] , elbow equal 25 mm bore as per drg.no. is:1239(part-2)-2011, reaffirmed2021, ta ble-8,threads iso7-1, aisi304, packing instruction- pi042 ver 1.0 [ warranty period: 30 months aft er the date of delivery ] ] , elbow equal 40 bore as per drg.no. is:1239(part-2)-2011, reaffirmed2021, table- 8, threads iso7-1, aisi304, packing instruction - pi001 (suitably packed in jute bags) [ warranty pe riod: 30 months after the date of delivery ] ] , elbow male and female 50mm forged and galvanised as per drg.no. is 1239 (pa rt 2) :2011 reaffirmed 2021 ,table-15,clause 13.1& 11.1(a), packing instruction - pi001(suitably pac ked in jute bags) [ warranty period: 30 months after the date of delivery ] ] => limited