我国薄板和带材一直不能满足各部门和各地方工业发展的需要,国家每年需耗费大量外汇进口钢材,其中尤以薄板材所占比重较大,如1986、1987年,全国薄板材年产量为390×10~4t,而同期每年进口量为310～320×10~4t,缺口很大。预计到2000年,可能和计划建设的热轧和冷轧宽带钢轧机全部建成后,薄板和带材的需求量仍差300×10~4t以上。 China’s sheet and strip have been unable to meet the needs of various sectors and local industrial development, the country need to spend a lot of foreign exchange each year to import steel, especially in a large proportion of sheet metal, such as 1986 and 1987, the national annual production of sheet metal 390 × 10 ~ 4t, while the annual import volume for the same period is 310 ~ 320 × 10 ~ 4t, the gap is very big. It is estimated that by the year 2000, the demand for sheet metal and strip will still be over 300 × 10 ~ 4t after the completion of all the planned hot rolling and cold-rolled wide strip mills.