Metal Bellows Mechanical Seal HF607 1. Temperature:-60--400 2. pressure:0-3.6Mpa 3. ... 4. Stationary Ring:20-200mm Welded Metal Bellows Mechanical Seal HF607:Application:Welded Metal-Bellows mechanical seals HF680 have a universal ... .4. Stationary Ring:20-200mm. Welded Metal Bellows Mechanical Seal HF607