... Q345,16Mn 4)TUV CERT The main products of our company include:welding-neckflanges,slip-on flanges ... DN2000). We can supply abve-nentioned standard flanges of DIN,ANSI,BS,JIS,UNI,NS and AS ... East and Africa etc. We have got plenty of experiences during several years manufacturing and managing.We ... develop together based on mutual benefit.The management purpose of our company is: To exist,benefit and develop ...