INTERNATIONAL STANDARDISO 5359-2017Rotary tools for threaded fasteners – Performance testmethodForeword萌头像女生ISO (the International Organization for Standardization) is a worldwide federation or nation
Abb. Long description NoteTrim CN 8 Akind of trim TRIM是指阀体内部的结构详细trim形式见API 600FULL PORT FULL PORT阀门内部流道直径和阀门入口的直径相同BLT BNT Bolt bonnet 阀帽通过螺栓连接SOL WG Solid wedge 一体楔式闸板,和Flexible wedge相对应OS&Y Out