St. Ye metal, PVC fence flower beds, PVC is provided by St. Ye metals. We are Linqu St. Ye metallwarenfabrik (www.shengyehl.com) located: Shandong Weifang specializes in: Zinc steel fence, galvanized fence, spray fence, lawn fence PVC cement fence Features: bright colors, its smooth surface PVC, high strength, toughness, corrosion resistance, anti-static PVC community fence, do not fade, no cracking community PVC fence prices, not brittle advantages. The most decorative fence boutique, and more for the product between the dotted green courtyard, garden trails, urban avenue, white and beautiful visual effects, make their homes, so that city, where we live more beautiful, more beautiful. Pvc steel railing coloring process roughly divided into black profile extrusion method, the composite co-extrusion, coating and surface coating bite. (1) black profile extrusion method, also known as whole body method. Intervention in PVC profile masterbatch formulations, black profiles via direct extrusion extruder. Strengths is finished in the original extrusion extruder, low cost; downside is the profile of the poor weather, the outcome is difficult to meet room table decoration applications. (2) Co-extrusion method. By steel railings and pvc additional layer of black material composed of co-extrusion profiles. The black material either PVC PVC fence flower bed, or polymethyl methacrylate, acrylic big wish - styrene - acrylate copolymer (ASA), will need two extruders hosts (double cone rod 60 or 58 and pupae Single screw 30) to get. Students must apply to a composite profile of manufacturing molds, raw vocals are manufactured since past two consistent material flow channel profiles and black material in the mold before leaving late in the bus to the same class of common extrusion. Fu of this approach are: raw manufacturing process need to reprovision cold mixer or dryer and other equipment, material recovery difficult, burdensome raw vocals manufacture composite film with high cost, large investments.