... : 45 LR/SR, 90 LR/SR, 180 LR/SR gost elbow 2, Seam & Seamless 3, Painted: black, varnish, antirust oil 1 ... . SR Elbows, 180 Deg. LR Elbow,gost elbow180 Deg. SR Elbow, 45 Deg. LR Elbow, 45 Deg. SR Elbow 2, Thickness: SCH20, SGP, STD ... : 1/2" to 72" 4, Material: carbon steel, alloy steel, stainless steel5, Packing: wooden cases, wooden pallets, cartons6, Standard: I ASTM ...