We supply a series products of metallic bellows expansion joint, fabric expansion joint, metal hose, high pressure rubber hose, tuyere stock assembly, oxygen lance & hose and its servo system & valve station system, and complete equipments for ladle furnace integral refractory pouring; products are widely applied in the fields of defense industry, metallurgy, petroleum, chemical industry, electricity, cement, heat system, coal mine£¬civil building and vessels etc.