What are the principles of equipment, materials procurement bid evaluation

Equipment, materials procurement bid evaluation principles and requirements of the equipment tender price should be based on the current price of the year, the long production cycle of equipment should take into account price changes. Equipment bidding bid evaluation generally not more than 10 days, large equipment not more than 30 days. Equipment and materials procurement should be the most reasonable price procurement as a principle, that is, the evaluation of bids should not only look at the high and low prices, but also take into account all the costs that may be paid in the process of the arrival of goods at the site, as well as equipment in the evaluation of the scheduled life of the possible investment in the operation, maintenance and management of the costs and so on.