1.PETROCHEMICAL Tubes ,fittings, coils ,manifolds and various other items, assembled or not, used in cracking furnacesand reforming furnaces. 2.METALLURGICAL Rolls ,radiant tubes and various static castings for CAL(Continuous annealing line)/CGL(Continuousgalvanizing line). 3.GLASS Various rolls used in float glass annealing lehr and cast glass production .4.