1概况1997年，我国包括钨精矿、钨的化工产品、钨铁合金、金属钨及其制品的钨外贸呈现进口用汇额减少、出口收汇额增加之状况。据海关统计资料，1997年我国钨的外贸进口额为1840．43万美元，比1996年同类商品进口额19ed．79万美元减少了6．l％；出口额13865．cd万美元，比上年 1 Overview In 1997, tungsten foreign trade including tungsten concentrates, tungsten chemical products, ferro-tungsten alloys, metal tungsten and its products showed a decrease in the volume of imports used for import and an increase in the amount of exports received. According to customs statistics, in 1997 China’s foreign trade import value for tungsten was 18.4403 million US dollars, which was 19 years more than that of similar commodities imported in 1996. $790,000 decreased by 6. l%; exports 13865. Cd million US dollars, compared with the previous year