موصل إصلاح لالتقاء أنابيب اللحام مع سائل مقاوم للتآكل P4

Pebble socket with short cavity for repair of welded ring seams and filling with anticorrosive liquid P4VD Welded groove socket with technological rings for repair of welded ring seams P5 Elongated welded nut socket with technological rings for repair of welded ring seams and defects in pipe wall P5U