henan hongji mine machinery co ltd

  • buy Coal Slag - high quality …

    Coal Slag. Coal Slag-Aluminum silicate aluminium silicate blast cleaning grit made of coal slag from coal fired power stations.Coal slag will blast off the toughest coatings so you can prepare surfaces right the first time.

  • china-21 - knak.jp

    2011-07-29 China Daily Yanchang Petroleum to focus on petrochemicals 陝西延長石油 Shaanxi Yanchang Petroleum (Group) Co, China's fourth-biggest oil producer by output, is planning to strengthen its petrochemical division and cut the weighting of its oil and gas unit in its total portfolio, after its oil resources were squeezed by China's top three oil …