厂段之间应否推行合同制铁道部天津物资管理干部学院刘明环铁路局材料厂对各站段等用料单位供料，应否推行供应合同制？这是一个多年来有争议的问题。自改革开放扩大了站段的物资采购权以来，站段对其所需物资，或向材料厂申请供应，或到市场自购，可以根据自己的采购决策... Whether the contract between the plant and the department should be promoted? The Liuminghuan Railway Bureau Material Factory of the Tianjin Material Management Cadre Section of the Ministry of Railways shall supply materials for each station and other material units. Should the supply contract system be implemented? This is a controversial issue for many years. Since the reform and opening up has expanded the goods and procurement rights for stations and stations, the stations and stations have requested their supplies, or have applied for supply to the material factory, or have made purchases from the market, according to their own purchasing decisions...