BLT-7A ~ 120A / W screw compressors for domestic conditions and operating environment designed and manufactured with superior performance, easy to install, nimble and highly productive characteristics; to meet the needs of many users, and for users production process escort; while ensuring high production efficiency and productivity, and reduce costs. · Host unified core components supplied by the company, using the world's most advanced rotor technology; · Patented line, the best line speed, always in the most efficient operation of state, energy efficiency significantly ahead of the market similar products; High rigidity design of the rotor, prevent internal leakage, ensure reliable operation and long life.