Shandong Yanggu Jiangbei Chemical Co. - PetroChina, Sinopec members of the network level. Tel: 18606356000 . Its leading product is the oilfield chemical additives, sulfonated asphalt powder , liquid lubricant , the annual production capacity of 20,000 tons , is engaged in oilfield chemical additives specialized companies. Sulfonated asphalt , liquid lubricant product quality have reached or exceeded the international advanced level of similar products . And Xinjian...
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