Which brand of copper pipe is good for Hitachi central air conditioning?

Liang Hai brand. According to the inquiry of installation materials of Hitachi central air conditioner, Hitachi central air conditioner selects seamless Hailiang copper tube with excellent material, the wall thickness reaches the specified standard, and the internal and external surfaces of the pipeline are intact, which fully ensures the normal operation of refrigerant. Hitachi, which is in the forefront of the world's top 500, ranks among the most respected brands in the world 10, and has strong scientific and technological strength in high-tech industries such as machinery manufacturing, integrated circuits, circuit electronics, nuclear energy and maglev trains. For a long time, Hitachi air conditioning system has taken scientific and technological progress and technical guidance as its own responsibility, constantly bringing forth the old and bringing forth the new to meet the ever-changing changes in society.