DIN3202 F4/F5 Gate Resilient Seated Valve 设计标准Design: DIN 3352 结构长Face to Face: DIN3202 F4/F5 法兰标准 Flanges: EN 1092-2 PN16 阀体Body: 球铁GGG50; 闸板Wedge: 球铁DL+EPDM/NBR 阀杆Stem: AISI 420/2CR13; 阀盖 Bo