Shandong Chongsheng Metallurgical Oxygen Lance Co., Ltd is an enterprise specialized in researching and producing of metallurgical lance & nozzle. Lies in Weifang High and New Technology Industry Development Zone of China. Our chief products are oxygen lance & lance nozzle, damper, slag hole, cooling plate for blast furnace. Our advanced technology projects, such as the biggest 335 coned-lance at home, the nozzle end surface protecting, the vacuum pressure casting, the assembling and forging nozzle etc. Our products are more than 100 specifications. Our market share is more than 80% in our country, the products are provided to more than 130 internal steel plants, such as Baoshan ISG, WuhanISG, ShouduISG and so on. Our electric furnace oxygen lance nozzle and the furnace-wall oxygen lance nozzle for electric furnace are exported to ISPAT company, India. the?168 nozzle is exported to USA for electric furnace; the?141 nozzle is exported to New Zealand; the?273 nozzle for converter is exported to Turkey , the RH-KTB purified nozzle and the IR-UT purified nozzle are exported to others countries. The constant-flow, sunken-mouth nozzle is a new developed patented product by our company (Patent No.ZL00214248), whose unique design of oxygen spray orifice can keep the efflux unchanged permanently. Its life is 20% of longer than other products, and its synthetical benefits are higher than international level