Various castings used for heat treatment furnaces, like Trays,Grids ,Baskets ,Holders,Jigs,Rails,Fans,etc., l Centrifugal castingtubes for petrochemical&metallurgical industries,like reformertubes,radiant tubes ,furnace rollers,etc., Our main productmaterials : various grades of heat resistant stainless steel likeHK40,HU,2.4879,1.4848, Ni-base alloy, Co-base alloy . Our castingmethods: Silicasol investment casting, Water glass investmentcasting, Resin sand casting.