Isbn: 9787537740302 - 中国煤矿煤质应用评价 (1 risultati)

Hardcover. Condizione: New. HardCover Pub Date: 2012 Pages: 514 in Publisher: Shanxi Science and Technology Press With the development of industrialization and the improvement of the technological level. different industries and even the same industry in different Wang Yi on the selection and evaluation of coal products appeared increasingly the more obvious differences. to determine the difference between the value of different coal products increasing. At the same time. the different uses and different quality coal pr.…