Good sealing: threaded design; Tight bite, no leakage of fluid
Convenient to use: concave convex texture for easy elasticity
Durable and sturdy: made of thickened material, with a wear-resistant surface
Not easy to adhere: smooth surface; Anti static and non hygroscopic
Acid and alkali resistance: Made of PTFE material, with good chemical stability
| 规格 | 高(mm) | 外径(mm) |
| GL14 | 18 | 20 |
| GL18 | 24 | 24 |
| GL25 | 27 | 32 |
| GL32 | 28 | 41 |
| GL45 | 28 | 58 |
| GL45顶开孔25mm | 28 | 58 |
| GL80 | 33 | 101 |