Respectable representative, from Peru I greet cordially. I am a representative of the company Representations Aylin, which has several injection Hayfeng 3800 and we are able to continue to acquire more. We have suffered the loss of valuable technical information which does not allow the operation and proper maintenance of machinery. I would ask you please if possible send us the operation and maintenance manuals and control system (Jing Hua microcomputer) to e said. I should be entirely grateful for your kind understanding. Awaiting your response. Thank you. Ing º J. Rodriguez.