There are equipment corrosion, insufficient heavy oil processing depth, environmental pollution, lower product quality and other problems in inferior crude oil processing.
加工劣质原油存在设备腐蚀，重油加工深度不足，污染环境，降低产品质量等问题。
There are equipment corrosion, insufficient heavy oil processing depth, environmental pollution, lower product quality and other problems in inferior crude oil processing.
加工劣质原油存在设备腐蚀，重油加工深度不足，污染环境，降低产品质量等问题。
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