stainless steel commercial flat washers are used under bolt heads or nuts to increase the bearing surface area, or to offer protection so that the nut or bolt can be rotated without distortion of the bearing surface. Flat washers are also used to give tightness to a joint, to prevent leakage, and especially to distribute pressure under the head of a bolt or nut. Dimensional specifications are governed by ASME B18.21.1. Commercial flat washers generally have a larger outer diameter than SAE (Society of Automotive Engineers) flat washers, and can be utilized in nearly any application. stainless steel fasteners are commonly used in applications that require general atmospheric corrosion resist ance, such as chemical and food processing equipment. Stainless steel has a higher corrosion resistance than carbon steel. Stainless Steel Washer,Ss Washer,Stainless Steel Square Washers,Black Metal Washers Taizhou Hongchuang Hardware Co., Ltd. , https://www.taizhouhongchuang.com
Yanzhou tungsten, rare earth and other industrial clusters sing the highlight of economic development
Under the impact of the international financial crisis, when the industry was generally depressed, the secondary industry dominated by tungsten, rare earth and fluorine salt chemicals in Ganzhou City surrendered an added value of 16.809 billion yuan, contributing 55.5 to economic growth. % satisfied with the answer sheet. As early as 2004, the municipal party committee and the municipal government proposed to actively rectify the order of mining mineral resources, implement industrial integration and strategic restructuring, develop intensive processing, and strive to cultivate leading enterprises and promote industrial agglomeration. This year, Cangzhou City was the first in the country to actively promote the construction of a strategic reserve system for tungsten and rare earths, and innovatively promoted the storage and storage plan for tungsten and rare earth products in the city, helping Zhangzhou Mining to “cold winterâ€. It is the courage and courage of “taking the first step†to accumulate the driving force for development and enhance the ability of enterprises to resist risks. In the general environment of the global economic downturn, the city's above-scale mining enterprises achieved a main business income of 11.383 billion yuan, accounting for 42.5% of the above-scale industries, and realized profits and taxes totaling 951 million yuan, accounting for 42.86% of the above-scale industries.