| We , Henan Yangyu Refractories Co. , Ltd , established in 2008 , is specialized in the flow control refractory with the total 150 staffs , including professional technical supporting team of 15 engineers , 3senior engineers , covering more than 2000 square meters.Now , we have a subsidary Henan Integrity Material Co. , ltd , and 2 manufacturing factories , located in Luoyang and Tai'an city.We mainly manufacture slide gate plate , ladle nozzle , Isostatic refractory |