Composite rating for sealed connectors and fittings: scores seal leakage rate, pressure rating and tightening torque.
閥門密封洩漏率、耐壓、擰緊扭矩三項檢測工具,依據GB/T 13927、GB/T 16823等標準判定合格與否。適用於閥門、管道連線件的密封效能檢測。