Supply of steel bolts, Yongnian County, Yongnian Bowen is a professional steel bolt fastener manufacturers, we have advanced technology, excellent equipment, high-tech assembly line operations, product quality assurance, for businessmen to provide strong steel bolt news. Welcome to the new and old customers to visit, to discuss cooperation! When the temperature is below 150 ℃ time of high strength steel bolts, steel properties change little. Thus steel is suitable for high-strength structural bolts hot workshop repeat, but the structure of the surface by the heat radiation of about 150 ℃, insulation boards to be used to protect them. Temperature steels strength and elastic modulus decreased significantly at 300 ℃ -400 ℃, the temperature of steel bolts ball grid price at about 600 ℃, the strength of steel to zero. Supply of steel bolt steel bolt, Yongnian County, Yongnian Bowen is a professional steel bolt fastener manufacturers, we have advanced technology, excellent equipment, high-tech assembly line operations, product quality assurance, for businessmen to provide strong structural bolts news News. Welding properties of steel refers - under given welding conditions, access to good properties of welded joints. Welding performance can be divided into two welding performance welding process welding properties and performance. Buying steel bolt manufacturers, steel bolt Bowen good (certified), steel bolts supplied by Yongnian County Bowen fasteners. Yongnian County Bowen fasteners (www.bwjgj.com) is Handan, fasteners leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Bowen fastener leadership with the staff warmly welcome all inquiries negotiations to create Bowen fastener better future.