kalrez o-rings 

1)Good quality, reasonable price,prompt delivery

2)Your sample,drawings are welcome....

3) High chemical properties, acid and alkali resistant

4) Wide working temperature range

5)Nonstick,not aging

6) Any rubber materials are available here. Such as silicone,NR,NBR,EPDM,SBR and so on

7).All kinds of rubber products with any specifications are available based on samples or 3D drawings.