Recently, our reporter confirmed from the State Environmental Protection Administration that China's third phase of vehicle exhaust emission standards - "Limits and Measurement Methods for Light Vehicle Pollutant Emissions (China III, IV phase)" will be implemented as schedu…

For a time, the micro-vehicles, which were once bound by the restrictions, finally broke out at the end of 2006. Unfortunately, after just three months of glory, the market in recent months can use “bad” to express the idea of ​​the manufacturers at the moment. I…

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“We have sent investment letters to all domestic chlor-alkali enterprises, and we have also published notices on investment promotion in professional magazines, but we did not even receive a consultation call!” said Feng Dianfeng, Deputy Director of Rock Salt Chemical Investment Pr…

I. Overview

Since 2001, Europe and the United States have successively implemented the second-stage emission regulations for off-highway vehicles. To meet this emission regulation, more than 10 liters of engines must use electronic control and air-to-air cooling tech…

A few days ago, FAW Xichai independently developed and innovated the CA6DN1 heavy-duty China III diesel engine to go offline, which made FAW Xichai a new member of the internationally advanced four-valve engine family. Vice Mayor Tan Xueming attended the ceremony.
CA6DN1 …

1, why double seat valve easy to oscillate when working? For single core, when the medium is open type, the valve stability is good; when the medium is flow closed, the valve stability is poor. Double-seated valve has two spools, the lower spool in the flow closed, the valve spool is open, so t…

Dosing pump is designed for measuring the liquid pump. Most metering pumps use the construction of piston and diaphragm pumps and are also useful gear pump constructions because they maintain a constant flow independent of d…