Co-extrusion method. By PVC fence and additional layer of colored material forming co-extrusion profiles. The color materials either PVC, or polymethyl methacrylate or acrylate - styrene - acrylate copolymer (ASA), the host requires two extruders (double cone rod 60 or 58 and the pupae single screw 30) to achieve. Production profiles must use a composite mold, the production process is from the profiles of two different materials and color material flow path, before leaving the bus into the same mold class late in common extrusion. Features of this method are: the production process need to reprovision cold mixer or drying machines and other equipment, material recovery difficult, complicated production process, high cost of composite membranes, large investment. First of all, talk about their requirements, residential fence, our main consideration is the quality of the security fence, so the production out of fence should be as strong. Our research and development department uses a metal material and slightly elastic metallic material; secondly fence, most are required to consider its fence height is a solid fence manufacturer, in this respect, some businesses to cut corners, which we need to pay attention. Our detection unit to finished products strictly tested to ensure that each piece of standard specification performance fence; finally, I want to say a lot of fence are customized quote fence, so depending on the circumstances were different regions customized, so the regulation of the entire cell area has a detailed understanding is necessary. Our engineering department for customers to develop service field measurements conducted fence design and production according to live. Quality Fence | Tibet Fence | longtai metal provided by Linqu longtai Metal Products. Linqu longtai Metal Products (www.wfhulan.com) strong, credible, Shandong Weifang Fence, bar, network, and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead longtai metal and you hand into the brilliant, for a better future!