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 villa booth Which is good, 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. Dongyang sun of Steel Materials Co. Reminder: Steel will help improve the quality of decoration. Decorative artificial production factory overcome the arbitrariness and certain technical inoperability, its precision and degree of cohesion is produced artificially difficult to achieve. Construction quality and accuracy are greatly improved headroom. With steel decoration factory, for example, the use of steel factory decorative ornaments to be able to create a new long seamless decorative effect villa booth, facing increased from millimeter precision to the micron level; Airless spray paint and air will effective separation villa booth purchasing, smooth finishes, primary vacuum steam drying wood, imported equipment tooth pick, for 30 years can not afford drums, no crack, no deformation. Villa booth sun of Steel Materials Procurement _ the best choice (certified) _ Pan villa booth provided by the sun of Dongyang Steel Materials Co., Ltd .. Dongyang sun of Steel Materials Co., Ltd. (www.dysdjg.com) Zhejiang Jinhua, steel leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the sun of steel material led the staff warmly welcome all inquiries negotiations to create sun of a better future for steel materials.