Pipe Flange Standards mainly include three systems in the world, ANSI/ASME flange system(American), DIN flange system(European system), JIS flange system, other system made according to this three systems,...
A weld neck flange consists of a circular fitting with a protruding rim around the circumference, and it is connected with pipe by welding neck. Weld neck flange is not easy to cause deformation, with...
The All-China International Tube & Pipe Industry Trade Fair was held from 25th to 29th, September 2016. Exhibitors from 22 countries, and more than 200000 visitors took part in the fair. DUWA PIPING...