1.Product description: Products High-Quality Gr2 Titanium long welding necks flange Material Grade Gr2 Certification DNV ISO9001:2008 Standard ASME B16.5/ANSI B16.5 Size 1/2"~ 64"NB, (DN15- DN3600) Pressure Clase JIS 5K 10K 16K 20K (DIN) PN6,PN10,PN16,PN25 though PN64 150LB, 250LB ,300LB, 400 LB,500LB, 600 LB,900LB, 1500LB,2500LB Technique Forged Flange surface FF Application Chemical, ...