we have two kinds of this product. ①.automatic rhomboid machine (automatic chain link fence machine): our automatic rhomboid machine applies technical double wire mesh forming principle from germany that produces high quality mesh panel with good production efficiency. it uses reasonable design, microcomputer control and electromechanical integration to complete automatically working procedures of spinning, shearing, mesh winding and lock seaming . ②.semi-automatic rhomboid machine (semi-automatic chain link fence machine): our semi-automatic rhomboid machine is easy for technical operation. it uses manual wire snipping and lock seaming to produce flattening mesh panel with credible performance of complete machine and little failure, which is suitable for small enterprises.