1, compared to profiles: color surface and cross section, wall thickness, texture quality profiles: color more positive, soft, smooth surface, good texture, strong toughness, beautiful colors not faded inferior profiles: back fill material or discarded materials excessive use, surface roughness, color gray, brittle texture difference, a relatively short time will fade aging costs account for only one-third of high-quality materials. 2, compared to the steel lining thickness, surface treatment process quality and sectional profiles: thickness are cast iron balcony rails, uniform surface and cross section of the inferior place rust and galvanized profiles: thickness errors, surface roughness, rust and plated handle more poor. Wrought iron fence products we choose, they should choose the right product according to their actual needs. 1. Tiehua flat to flat iron as the main material, cold-bending as the main process equipment manual or manual operation, modification rarely ends. 2. wrought iron with low carbon profile as the main raw material to the surface Zhahua, mechanical bending, forging spraying for the main process plant fence, hand-forged auxiliary processing. 3. Cast iron gray cast iron as the main material, cast as the main process, pattern varied Iron highway guardrail, decorative and strong. Such iron products are used to fix the shape of a mold, these products are very rough appearance of a large fence, straightforward lines, rough, overall bulky products, such products price is not high, it is easy to rust than steel products cast iron products look a little smooth and delicate. Spray fence | Fence | longtai metal provided by Linqu longtai metallwarenfabrik. 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!