Petroleum coke, petroleumbitumen and other residues of petroleum oils or of oils obtained from bituminous minerals.
石油焦、石油沥青及其他石油或从沥青矿物提取的油类的残渣。
2
It is in keeping with the requirement of environmental protection and economic efficiency to produce impregnating pitch from petroleumbitumen modified.
认为石油沥青经过改性后制备浸渍剂沥青符合环保和经济性要求。
3
Cold fill bituminous mixture is a high-tech road repair materials, made from modified liquid petroleumbitumen and aggregate processing by certain hybrid made.