Although China’s coal-to-oil projects are facing good development opportunities, they also face the challenges of huge project investment, mature technology, and water resources and environmental protection. Technical Risk Coal liquefaction has two technical routes: direct liquefaction and

Thermosetting polymer-based composite laminates can also be machined with other machines (automatic thread cutters, gear cutters, shaving machines, reaming machines, punches, punches, etc.) depending on the equipment used. Thermoplastic polymer matrix composite laminates can be die c

After the autumn crops were harvested, most of the pests entered the overwintering period in succession, and the following measures were taken to control pests. Clean pastoral. Some pests are often lurking in the remains of host plants, such as dead branches, fallen leaves, and fruit dr

Epichlorohydrin (ECH) is an important organic chemical raw material and fine chemical product. It is mainly used for the production of epoxy resin, synthetic glycerol, chlorohydrin rubber and glycidyl ether. The status of the domestic market In recent years, due to the continuous increase in the d

On October 11, 2008, the 12th National Drying Conference Experts' Meeting was successfully held in Jiangnanchun Hotel, Changzhou, Jiangsu. The conference was hosted by the Drying Technology Professional Group of the Chemical Engineering Professional Committee of the China Chemical Industry Ass

Yesterday, we learned from relevant sources that the National Development and Reform Commission plans to impose restrictions on imported petrochemical equipment, which will create a market space for domestic manufacturers of 75 billion yuan. The National Development and Reform Commission drafted th

The product name specification material steel factory/origin price (yuan/ton) is higher than yesterday last week than the previous month Pu line Φ6.5mm Q235 JIS 5850 0 -110 -70 Pu line Φ6.5mm Q235 Handan steel 5850 0 -110 -70 high Line Φ6.5mm Q235 Handan Steel 5850 0 -110 -70 High Line Î

Xu Xin Xu Zhanguo (Guanxian Agricultural Bureau Guanfeng Seed Industry Technology Co., Ltd.) Guan County is a large agricultural county with annual wheat planting area of ​​about 1 million mu. From 2006 to 2007, in conjunction with the construction of the "Quality Whe

1 Machining deep-stepped holes in a horizontal machining center When the deep-drilled hole ØD with an empty hole is shown in the drawing, the tool in the hole of the empty hole is rapidly fed, but the complex casting is shown in the drawing b. There may be deviations in

First, wheat soil testing and fertilization techniques and technical points: According to surveys, wheat fields in northwest China's wheat are seriously deficient in phosphorus, generally lack of nitrogen, potassium is relatively sufficient; Huanghuaihaimai high-yield fields of potass

Recently, Gehlfa heavy-duty trucks took the lead in the industry to realize the cathodic electrophoresis process of the frame, which raised the overall anticorrosion level of the product to a new level. This is the perfect match between the German III engine and the complete vehicle and the