HC-FG-005 zc型活塞组合密封圈. Food-Grade Machinery Industry Seals. 丁腈橡胶（NBR）/氟橡胶（FKM）/聚甲醛橡胶（POM）. Tekanan: 45mpa Suhu: -35/+200 Kecepatan: 0.5m/s