Solid Stellite 6 disc, fully guided for fast and full seating, even without spring.

实心钨铬钴合金6阀瓣，即使没有弹簧，也可适用于快速和完整阀座的全引导。

youdao

Solid Stellite 6 disc, fully guided for fast and full seating, even without spring.

实心钨铬钴合金6阀瓣，即使没有弹簧，也可适用于快速和完整阀座的全引导。

youdao