henan hengjia materials co.,ltd. set up in 1996. it is a professional enterprise for producing ferroalloy . our main products are: ferro silicon magnesium, ferro silicon barium, highly effective inoculant, etc., in three grand series and more than 70 specifications. the annual output up to 10000 tons. our company acquired certificate of iso 9001 in 2000. more than 95% products are exported to 20 counties and regions, such as usa , uk, singapore, malaysia, poland, india, egypt, japan,

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