Clients in Russia,Kazakhastan,India,China,Indonesia,Canada, UAE,Iran ... as China National-level High-tech Enterprise by Chinese government in 1993.The company implementes ISO9002 quality assurance system. ... over the world.We hope to cooperate with you in the long time. Good Features and advantages of QD ... for packing road bitumen.(2)All bag 100% melted in bitumen at 180-190 celsius degree ,no damage to ...