20 0 3年 ,是我国加入ＷＴＯ的第二年 ,也是全国首批 170个城市限时“禁实”的最后期限。为此全国墙体材料科技信息网将因势利导、把握机遇 ,继续坚持网“一个服务、两个依靠、三个立足点”的基本思想 ,努力为网员和企业服务。1　工作目标以页岩、煤矸石、粉煤灰多孔砖、空心砖 The second year of our country’s accession to the WTO in 2030 is also the deadline for banning the “banning” of the first batch of 170 cities in the country. To this end the National Wall Materials Science and Technology Information Network will guide the trend and seize the opportunity to continue to adhere to the network “one service, two rely on, three footholds,” the basic idea, and strive to serve the network of employees and enterprises. A working goal to shale, coal gangue, fly ash porous brick, hollow brick