唐山市在对国有企业进行战略性调整的实践中，探索出了一些行之有效的方法，主要是坚持适当收缩国有经济的范围和“抓大放小”。 　　唐山市是老工业基地，国有大中型企业相对集中，并且有一批企业在全国同行业居重要地位。但是长期以来国有经济战线太长、力量分散、整体素质不 Tangshan City, in the strategic adjustment of state-owned enterprises in practice, explored some effective methods, mainly adhere to the appropriate contraction of the scope of state-owned economy and “big and weak”. Tangshan City is an old industrial base where state-owned large and medium-sized enterprises are relatively concentrated and a group of enterprises occupy an important position in the same industry in the country. However, for a long time, the state-owned economic front has been too long, its power has been dispersed, and its overall quality has not gone up