Ningbo Chi Iron Gate Branch Technology features: a high-grade materials and technology: 1, material: GB Q-235A grade steel. 2, the welding process: the use of carbon dioxide gas shielded arc welding. (Weld uniformity, strong airtight performance, solidity good) welding. 3, surface treatment: hot dip galvanizing process are used outdoors Second, mid-range materials and processes: 1, Material: non-standard Q-220B grade steel. 2, the welding process: using hand welding techniques. 3, surface treatment: hot dip galvanized products can be based on customer demand rust treatment. Spray paint can, paint, surface treatment, many years of experience make the surface paint paint does not fade for many years. Combining practicality and artistry crafted products, and strive to achieve accurate and correct, so that every product is distinguished extraordinary. Wrought iron art, has a long history, Iron Gate, also known as "Iron Gate" development "patio door", wrought iron materials and processes also has 2000 years of the development process. As architectural art in the early 17th century Baroque architectural style prevalent times, has been accompanied by the development of European architectural decorative arts, traditional European artisans craft products, has a simple, elegant, bold art style and glorious history, it is Breathtaking, has spread.