Tetra fitting by Sand Casting
HEXIN supply the most common 45°elbow ，90°elbow and 180°elbow,the material is heat resistant alloy stainless steel, special sand casting method or by investment casting method, under strict NDT tests like RT test.

For cracking furnace tube we have 90°elbow,180°elbow,tee , palm tube, three-dimensional shaped elbow , hanging pieces etc.

For reformer furnace tube we have reducing cone , the  manifold reducing cone, hanging pieces etc.