(一)市场的主要情况和特点。(l)专业市场和有形市场少。除钢材和有色金属原料以外,其他的物资均未形成可以直接销售给用户的专业市场和有形市场。机电产品主要是根据用户需要,采取招标投标的方式,由厂家按合同要求安排生产。水泥基本上全部加工成水泥构件或混凝土售给建筑商。木材也主要是加工各种规格的制成品出售。 (a) The main conditions and characteristics of the market. (l) Less professional and tangible markets. Except for steel and nonferrous metal raw materials, other materials have not formed a professional market and a tangible market that can be directly sold to users. Electromechanical products are mainly based on the needs of users and adopt tender bidding methods. The manufacturers arrange production according to the contract requirements. Cement is basically all processed into cement components or sold to builders. Wood is also mainly sold as processed products of various specifications.