Flanges with good quality and favorable price,on equality and mutual benefit, ISO9001 and PED ... by TUV-Germany type:welding neck flange,slip on flange,blind flange,socket welding flange,plate flange. ... ,DIN,BJ,JIS,UNI,GB,AWWA and so on.material:carbon steel,stainless steel and alloy steel. ... .We will offer the best quality flanges with favorable price on the basis of equality and mutual benefit.