The “parallel quick support operation device for roadheaders†independently developed by Shimei Coal Machinery Co., Ltd. was recently granted a utility model patent by the State Intellectual Property Office. The patented device can realize support operations while digging coal mine road-----
Looking back at the 2012 lubricants industry, the macroeconomic slowdown stabilized, and the demand for lubricants was in a downturn. The supply and demand pattern of the base oil in the industry was broken down. At the same time, the customer's demand went up to high-grade and personali-----
China Drying Newsletter On January 31, the China Foreign Trade and Economic Cooperation Center of the China Petroleum and Chemical Industry Federation and the Canadian Waterfront Oil & Gas Co., Ltd. signed a technical agreement in Beijing on the issue of the export of heavy oil light oil techn-----
Spectral analysis of tangential integrated error We measured the overall error of the tooth surface of a single spur gear (m=2.5mm, z=44) on the CD320G-D single-bit instrument, and the two-way error obtained after computer processing. Tangential comprehensive error curve (the upper one is the tange-----
Which sensors are in the electronic control system? What are the characteristics? The sensor is a detection device that can sense the information being measured and can transform the information sensed by the detection into electrical signals or other requ-----
For the characteristics of the gear parts, the API function provided by the CAXA electronic board secondary development platform EBADS is used to prepare the parameter drawing subroutine with VC 5.0, so as to realize the automatic generation of the process diagram. The following is an example of som-----
After encountering the "winter" of 2012, what do truck companies think about the 2013 heavy truck market? With the recent closing of corporate business conferences in a row, the answer has gradually emerged. Recently, the reporter sorted out the market pre-judgment of eight major truck -----