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Calumet Lubricants公司生产的Cal-sol_8系列操作油是由专门选择的一种国产原矿的混合物,使用该公司的现有技术,通过多级氢化作用加工而制成的。据该公司称,
Calumet Lubricants’ Cal-Sol 8 series of process oils are made from a blend of specially selected domestic ores using the company’s state-of-the-art process by multi-stage hydrogenation. According to the company,