There are two kinds of wet storage methods commonly used for tree species stored in winter: “hiding” and “reserving”. The practice of the pit is to select a high-pitched, w.......

• Model NO.: 265/70r19.5
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The chemical industry has become a pillar industry in Hongze County, Jiangsu Province. In the first 10 months of this year, the chemical industry in Hongze County registered 37.983 million yuan in taxes, accounting for 39.77% of the total national tax revenue, an increase of 29.77% over the sa.......

The invention relates to a device for retrograding residential and municipal drainage pipes. Specifically, when the external pipe is blocked, the countercurrent sewage is blocked by the check ball in the device, preventing the backflow from occurring, and the normal drainage is not affected. At.......

The reporter learned from Liaoyang Petrochemical Fiber Co., Ltd. on April 7th that Liaoyang Petrochemical Company's 111,000 tons/year dilute nitric acid and 40,000 tons/year concentrated nitric acid plant designed by the Second Design Institute of Chemical Industry were put into operation .......

China's large number of valve enterprises, highly competitive, the current status of the valve industry in what? "15" period will be how to develop? This reporter interviewed China General Machinery Valve Industry Association, asked them to talk about the future development of the.......

Due to the structure of the limited displacement, usually that the gear pump can only be used as a constant flow hydraulic source. However, the attachment and threaded coupling valve scheme is effective in increasing its functionality, reducing system costs and increasing system reliability.......

Development and application of "stepping on pump" Jiang Xiangshan (Department of Municipal and Environmental Engineering, Shenyang Institute of Civil Engineering and Architecture, 110015) Abstract With the shortage of water resources in our country, water conservation has become a top.......