1)Brand name : KF flange vacuum bellow.
2)Model no. : high vacuum bellows
3)Thickness:0.15mm
4)Waveform: ring waveform
5)Wave from: 5/6.5/8/9
6)Welding process: import welding
7)Material: national standard 304 stainless steel
8)Outer diameter: 26/34/53/64
9)Diameter of chuck: 30/40/55/75
10)Ultimate vacuum: 0.000000001pa(10-9pa)
11)Permeability: below 5*10-10pa.m3/s
12)Flexibility: soft/can be rolled/can fold/appropriate expansion
13)Scope of use: imported pump/combination pump/molecular pump/diffusion pump/bipolar vane pump cold pump/vacuum furnace