You know the difference between No. 70 and No. 90 asphalt it? Keywords: asphalt No. 70 and No. 90, No. 70 and No. 90 penetration bitumen, No. 70 and No. 90, respectively, where applicable, the price of the two regions now asphalt for road construction is very seriously, but there are Some people are upset No. 70 and No. 90 asphalt roads are asphalt, what is the difference between the location of the object's construction confidant and what kind of pitch? Do not worry, listen to me speaking slowly. Collectively, No. 70 and No. 90 are all asphalt road asphalt, which does not exist poor quality which is good quality, the difference is the difference between the degree of penetration, penetration bitumen No. 70 and No. 90, respectively, 60-80 and 80-100, popular terms, is No. 70 asphalt hard, while No. 90 asphalt softer, from this side, south of the relatively warm weather, high temperatures, suitable for use No. 70 asphalt, while the north the weather cold, low temperatures, suitable for use No. 90 asphalt, which is No. 70 and No. 90 asphalt differences, they are not sure of you now know it? If you want to buy No. 70 and No. 90 road asphalt road asphalt, please call the Shandong Provincial Road to Health Group Sales Manager Zhang, telephone 18954025865. Also, if you have any questions or ideas, the phone is not convenient to say, Welcome The company visits, talks, full address of the company is Guangrao County, Dongying City, Shandong Province Economic Development Zone No. 678 Road unity.