Structure and manufacturing process

* Porcelain Core: manufactured with high alumina porcelain
raw materials;
* Silicone Rubber Sheds: HTV silicone rubber, with alternative shed profile；
* With the high pressure injection molding at high
temperature, the silicone housing is fully bonded to the
porcelain solid core which cemented fitting in advance.
The silicone housing adheres directly to the fitting without the
need for artificial sealing;

Feature
* High mechanical strength with much lower of deflection
* Excellent performance of anti-pollution;
* Long lifetime is guaranteed;
* Maintenance expenditure is reduced to a minimum;