Search results for keyword: qi
Deep drawing
Globalization
Globalization is becoming increasingly important for all nations around the world, as it helps to facilitate increased economic cooperation, encourages cultural understanding, and allows for the easy flow of goods, services, and information between countries on a global scale. Globa......
1052 
Sophie
Cupola
The Crucible
Written by Arthur Miller, the Crucible is a play set in the Salem village of Massachusetts in 1692. The play’s protagonist, John Procter, is a farmer who is accused, along with other townspeople, of trying to practice witchcraft. He finds himself in the midst of the Salem witch tria......
Comparison table of commonly used steel grades at home and abroad (6)
Steel grade equivalents table
Country USA UK Germany France Italy Spain Sweden Japan
AISI/SAE Werkstoff DIN AFNOR UNI UNE JIS
1018 1.0453 C10/C15 22Mn6/C22C10 1449/08 070M20/070A22 1020 CK22/C22 050A20/C20
1022 1.0619 S22C S15CK/C15CK S20C 080M15/080A15
1030 1.1133 C25/C30 25Mn4/C25C10 1449/0......
Representation method of brand name of domestic melting flux
The brand name of domestic molten welding fluxes is commonly represented by a combination of four (or five) letters and two figures, such as TK-308. The letter part is constituted mainly by the initial letters of the flux type, its source and its brand; the figure part mainly represents three item......
China heat resistant steel grade
Heat Resistant Steel in China
Heat Resistant Steel (HRS) is a type of steel that has the capability to withstand high temperatures before becoming damaged or destroyed. As a result, it is widely used in a variety of industries, including aerospace engineering and shipbuilding. In China, the speci......
Chinese steel wire
Steel in China
China is the leading producer of steel in the world, accounting for more than half of the worlds output in 2017. Its success in steel production is a result of its massive investment in the industry. Chinas steel industry has grown from an insignificant producer in the 1970s to pla......
GB/T 5313-1985 through-thickness performance steel plate
GB/T 5313-1985 Thickness Oriented Performance Steel Plate
This standard specifies the technical requirements, inspection and acceptance, and packaging, marking and quality certificate of thick oriented performance steel plate (hereinafter referred to as steel plate). This standard applies to thic......
Ancient Chinese Coal Mining Technology
Coal Mining Techniques in Ancient China
Coal is one of the most important components of ancient China’s energy resources. Before man began to build machines used for coal mining in the 19th century, humans had been harvesting coal from the ground for centuries with manual labor. The Chinese had ......
Fuming of tin ore
With the years of experience that Xikang Zhongkang Metal Mine Smokehouse has, it is no surprise why it is the leading provider of premium and unique wood-smoked products in the region. Serving customers in more than 25 countries, this company continues to explore and develop the perfect blend of e......
China National Mine Park
Chinas National Mining Park
Located in qi Dashan, Henan Province, Chinas National Mining Park is a former open-pit coal mine that is now a big eco-tourism tourist destination. Featuring an unparalleled mineral wealth, the park has now been reinvented as an eco park that is a paradise for nature l......
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