API602 Forged Steel Gate Valve 1.Size:NPS2"-24",DN50-600 2 ... -2500LB,PN1.6-42.0MPa 3.Material:A105,LF2 API602 Forged Steel Gate Valve 1.Size:NPS2"-24",DN50-6002.Pressure ... Welding,Bear and insert welding.3.Design feature: Single-disc,Double-disc.4.Sealing formation:Hard alloy,Alloy steel.Feature:1.Both ... system equipment, which can control the production quality effectively API602 Forged Steel Gate Valve