不锈钢截止阀J41F-16(25)40P≤100℃J41Y-16(25)40R≤510℃J41H-16(25)40P≤400℃J41W-16(25)40R≤300℃DN15-200mm商品描述：适用介质：腐蚀性密封圈材料选择：F-聚四氟乙烯Y-合金钢H-不锈钢(Cr13系)W-阀本体)