Welding procedure is an important step in the manufacture of vessel,the quality of vessel welding direct influence on th...
In May 11,2009, the 29th International Exhibition-Congress on Chemical Engineering
International Oil & Gas industy exhibition & conference OSEA, ,a world famous exhibition with 30 years history
Back flush filter ability strong, big flow
Raw water from the inlet flow into the filter cartridge inside, and then from the inside out by filter barrels, impuriti...