... quality to be equality and mutual benefit ISO9001 and PED Thread FlangeOther Type: Slip-On, Welding Neck, Blind, Socket Welding, Lap ... -600 PN2.5,6,10,16,20,25,40,50,100,150,250,420 TYPE01,02,03,04,05,11,12 ... DN10-4000 PN2.5,6,10,16,25,40,64,100,160 SO,BL,PL,WN,LOOSE,THD RST37.2/1 ...