TK001 wet small machine core ball valve cold copper shell (hot forging)
Copper shell TK002 wet without valve cold water
TK003 Wet Hot Ball Copper Shell
TK004 scaling prevention cold wet ball valve copper shell (hot forging)
TK005 wet small machine core ball valve cold copper shell (hot forging)
TK006 wet small machine core ball valve cold copper shell (hot forging)
TK007 wet small machine core ball valve hot copper shell (hot forging)
TK008 wet photoelectric large copper shell machine core ball valve cold water (hot forging)
TK009 no copper valve cold water wet small machine core shell (hot forging)
