Haisun Rubber produced the waterproof sealing ring for mobile phones in response to the smartphone industry's increasingly stringent waterproof sealing criteria.
The surface roughness range control within Ra0.8 - Ra0.1
Tolerance: ±0.02mm
Recommend material: NBR, SIL, and FKM

1．Material standard by REACH
2．Waterproof depth 300 meters
3．The surface roughness range control within Ra0.8 - Ra0.1
4．Tolerance: ±0.02mm
5．Recommend material: NBR,SIL