Dongyang sun of Steel Materials Co., Ltd. to introduce you to the knowledge of steel structure fire. To overcome the fire protection of steel materials in the practical application inadequate procurement villa booth must be fireproof treated booth where to buy villas, its purpose is to improve the fire resistance of steel to design specification limits. Steel prevent rapid warming in the fire deformed slump, its measures are varied. Dongyang sun of Steel Materials Co., Ltd. to introduce you to slip Test Method for Resistance: high strength bolts should imprison points early twist, the final twist. Tighten bolts prestressed early standard value should reach about 50%, after the final twist classy villa booth, prestressed bolts shall meet the following requirements. (1), on the strength bolts fitted with a pressure sensor or resistor, using resistance strain gauges measured control values ??for each specimen prestressed bolts should 0.95-1.05p (p designed for high strength bolts prestressed value) of room. (2), when not measured, torsional shear strength bolts prestressed (coaxial force) can be approved with the mean test prestressing access. Villa Villa booth booth cost _ _ Jinhua sun of steel materials provided by credible Dongyang Steel Materials Co., Ltd. Shun up. Dongyang sun of Steel Materials Co., Ltd. (www.dysdjg.com) strong, credible, Jinhua in Zhejiang steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the sun of steel material and you hand into the brilliant, for a better future!