we are having seeking for perfect,innovative development ideals and make hongba became excellent linear system manfacture in the nineties 21th and knew abroad.The potentional of this mew invention beyond everyone's imagine.The transmissio have bring powerful efficient on human engineering in office,hosptial,causal funiture,farm and industry fields,largely reduced the labor intentisy.hongba has been became the worldclassed linear system enterprise both in design and manufacture.