DIN3352F4Non-RisingStemResilientSeatedGateValve设计标准Design:DIN3352结构长FacetoFace:DIN3202F4法兰标准Flanges:EN1092-2PN16阀体Body:球铁GGG50;闸板Wedge:球铁GGG50+EPDM/NBR阀杆Stem:AISI420/2CR13;阀盖Bonnet:球铁GGG50;压力:PN16环氧树脂喷涂Productcolor:BlueRAL5017)