The six domestic standards for furnace transformer industry are all drawn up taking our company as main , as arc furnace transformers jb t9640 - 1999 , sub arc furnace transformers - general jb t5344 . 1 - 2004 , specification and technical requirement for calcium carbide furnace transformers jb t6303 - 2004 , specification and technical requirements for yellow phosphorus furnace transformers jb t8506 - 2005 , electroslay remelting furnace transformers jb t8447 - 2005 , ladle refining furnace transformers jb t10429 - 2004 , etc . the rectifier transformers for chemical engineering and metal - lurgy enterprises also received high value from users and have been exported to vietnam . nowadays , our company is cooperating with italian danieli company on technology and business , that is , our products will be sold to ukraine and burma through anthodium of danieli , and relevant technology cooperation is being negotiated now
