美國VTON威盾進口美標球閥(American Standard ball valve)設計制造標準是API 600、API 602,在管路中主要用來做切斷、分配和改變介質(zhì)的流動方向。
American Standard ball design and manufacture of standard API 600, API 602, in the pipeline is mainly used for cutting, distribution and change the direction of flow of the medium.