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    中國石油
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    1、Fluid loss agent
    2、Lubricant
    3、Polymer
    4、Sealing agent
    5、Anti-sloughing Agent
    6、Oil-gas reservoir protection agent
    7、Desulfurization agent
    8、Emulsifiers
    9、Tackifiers
    10、Defoamer for drilling fluid
    11、Gas well yield stimulant for oil and gas field development
    12、Corrosion inhibitor
    13、Solid desulfurater for natural gas
    14、Basic materials
    15、Others

    彩票网址大全