elbow, cnc machining, flange elbow Material: alloy steel(90-60) carbon steel, gray iron 65-45-12 Process: lost wax casting Specifications:1) Used for pipe2) Material: alloy steel(90-60), carbon steel, gray iron 65-45-123) Process: lost wax casting and cnc machining4) Standard: ASTEM, SAE, BS, DIN, UNI5) Weight: 0.4 - 80kg6) Surface treatments: sand blasting, electrophoresis, zinc plating7) Heat ...