| 出生地 |
China (Mainland) |
| 牌子的名字 |
Chunhuan |
| 形状 |
戒指垫 |
| 标准或Nonstandard |
标准 |
PTFE envelop gasketis made of PTFE asbestos rubber plate which has anti-corrosion performance, and it can not react with concentrated acidalkali and strong oxidant even under high temperature.