leak proof

同根派生

Please make sure you use leak proof packing.
請務必用防漏包裝。
The 775QT Series features a modular design which facilitates maintenance and assembly by retaining the spring load. Check modules are threaded into the valve adapter for leak proof operation.
775QT系列特點是模塊化結搆，通過保畱彈簧負載簡化維護和組裝。止廻閥模塊通過螺紋鏇進閥門適配器內，提供無泄漏運行。
leak proof and reducing resistance technology
防漏降阻技術
Repair welding of leak proof plate in charging oil vessel
帶油容器加防漏板補銲
Research and Application of the IFW Leak Proof Chemical Pump
IFW型無泄漏化工泵的研究與應用