| Место происхождения |
Sichuan China (Mainland) |
| Бренд |
Greatwall |
| Номер Модели |
customized |
| Стандартные / Нестандартные |
Нестандартные |
| Тип |
Круглые кольца |
| Материал |
Резина |
Patent products designed by the company, improving Glyd rings and Step seals significantly by replacing pressure compensating o-ring with u-ring and changing single sealing line into multiple sealing lines, resulting in no leakage under high/low pressures at a line speed below 8m/s.