... applied in petroleum, chemical, mining, metallurgy, electric power, transportation, machinery manufacturing, railway etc. Features:1. Special polymer ... oil in petroleum, chemical, mining, metallurgy, electric power, transportation, machinery manufacturing, railway and so on. Technical Parameters: ... ≤100Gas content%≤ 0.1Cleanness ≤ NAS 6 gradePower supply 380V 50HZ 3Ph (As per user’soption)Working ...