求翻译：中国锅炉企业用钢主要有中厚板、管材和型材，分别占55%、30%和15%左右。钢铁在锅炉制造成本中，材料费占70%-80%。锅炉用钢价格的降低就会缓解锅炉企业的材料成本压力，因此很多锅炉企业往往会库存大量的钢材以备生产。是什么意思？

Chinese steel companies are boiler plate, tubes and profiles, respectively, 55%, 30% and 15%. Steel in the boiler manufacturing costs, material costs account for 70% -80%. Boiler steel prices will ease the boiler to reduce material cost pressures companies, many boiler companies tend to prepare larg

china steel boiler enterprises in main plates, tubes and type material, which accounted for 55 per cent, 30 per cent and 15 per cent. iron and steel in boiler manufacturing cost, material costs accounted for 70 per cent to 80 per cent. Boiler steel prices will ease the lower material costs of the bo

Chinese Boiler Enterprise mainly has the cut deal, the tubing and the molding with the steel, accounts for 55% separately, 30% and about 15%.The steel and iron in the boiler production cost, the materials expenses occupies 70%-80%.The boiler reduces with the steel price can alleviate the boiler ente

China steels for boiler company mainly has plates, pipes and profiles, accounts for around 55%, and 15%, respectively. Steel in boiler manufacture cost, material cost 70% per cent. Boiler steel prices reduce the ease boiler material cost pressure, many enterprises tend to stock a large number of ste

Chinese steel companies are boiler plate, tubes and profiles, respectively, 55%, 30% and 15%. Steel in the boiler manufacturing costs, material costs account for 70% -80%. Boiler steel prices will ease the boiler to reduce material cost pressures companies, many boiler companies tend to prepare larg