... Power: 7.5HP, 10HP, 13HP, 15HP, 20HP AC series compressors are manufactured by the imported design and production technology ... from Arctic Circle, UK with "AL, AM, AR" 3 series and 19 specifications, high- medium - low temperature and ... is reliable. The AL series compressors adopt low pressure spraying lubrication system while AM and AR series compressors adopt oil pump ...