In order to improve the production efficiency of edible fungi, the Beijing Agricultural Technology Promotion Station has introduced seven new varieties of high-grade edible fungus, such as lotus bacteria, golden fortunate mushroom and pork belly mushroom, to conduct trial demonstrations. Among th
Read moreDiamond experts must read, super hard scholars need to know Song Jianmin Diamond Series Dr. James C. Sung's Diamond Books How Dream Materials Lead the World in Science and Technology 1. A Century's Monopoly of Gem Diamonds, 2008, 325 pp. How De Beers monopolizes the global diamond supp
Read moreAluminum alloy building profiles (hereinafter referred to as aluminum profiles) are aluminum alloy hot extrusion profiles used to process aluminum alloy doors, windows, glass curtain walls, and for decoration. They are lightweight, beautiful, and durable. They are widely used in various applications
Read moreAbstract: This paper introduces the principle of _r rapid plating technology. It is characterized by simple equipment, flexible operation and flexible process. It is used for local repair of equipment and mold parts, and has significant economic benefits. Key words: rapid plating; equipment mainte
Read moreRadish is a one-and two-year-old herb of the genus Brassica, one of the main vegetables of root vegetables. Radish has a large absorption of nitrogen, phosphorus and potassium. It is a high-yield crop with high fertilizer content. For every 4000kg of radish, about 8.5kg of nitrogen, 3.3kg of ph
Read moreWith the rapid development of the automotive industry in China, automotive wheels as a key component, the process technology of its production has been more and more people's attention, the traditional steel wheels have been gradually replaced by aluminum alloy wheels. Compared with steel wheel
Read moreTotal 2 Page First Previous [1] [2] Next Page Last Page Transparent Roller Shutter Door Material: polycarbonate (PC bulletproof plastic) Using aluminum profiles for door connection piece, two-layer structure , special design ,embedded into the door sheet. Simple and elegant, strong resist
Read moreForeword : The quality and efficiency of aluminum profile production are closely related to the design and structure of extrusion die. Based on the work experience and production experience over the past few years, the author briefly introduces several optimizations of aluminum extrusion die which
Read moreHub Assembly For CADILLACSHAOXING ZHENGHONG AUTO PARTS CO.LTD , https://www.kontinental-bearing.com
Read more1. The origin of the problem Metal cutting fluids play an important role in metal cutting and grinding processes. The selection of a suitable metal cutting fluid can reduce the cutting temperature by 60-150 ° C, improve the surface quality by 1 to 2, reduce the cutting resistance by 15% to 30%,
Read more1 Introduction There are many types of tools used in machining, such as: common knives with turning tools, drills, saw blades, end mills and taps, etc. When the tool is in use, the blade will become dull. If the tool becomes blunt, it will not only affect the accuracy and surface roughness of the
Read moreOn the bombing of bus No. 9 in Zhengzhou City It is said that this morning, my bus No. 9 in Zhengzhou City was unscrupulously bombed. This was the first explosion in Zhengzhou during the Olympics. This despicable act is one It is a kind of disruptive behavior against the Chinese people’s
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