AOYU (former Nnajing Hezhan Precision Technology Co., Ltd. http://www.njhezhan.com), has engaged in the R& D, production and trading of water-jet cutting machines for decades, with a fine reputation and popularity for the very high price/performance ratio among peers and clients. After years of innovation and development of water-jet technology, AOYU has grown into a big entity with 6.6 acre production base and built a professional experts developing team. AOYU has developed various waterjet m