Procurement of reducer concent ric material astm a403 gr tp304l bw 150 lbs sch 10x10 4 57x4 19 mm size 12x10 inch ansi b16 9, concentric reducer smls size 10 inch x 8 inch sch 40 moc sa 234 gr wpb as per asme b16 9 bw ends as per asme b16 25 , elbow 90 deg smls size 10 inch sch 10s moc sa 403 gr wp304 long radius 1 5d as per asme b16 9 bw ends as per asme b16 25 and other related items