- WIXROYD
- WINSMITH
- Wixey
- WESTERMO
- WOLFGANG WARMBLER
- WTO
- WEIDMULLER
- WELDON VALVE
- WALTER
- WANNER
- WESSINGTON
- WATSON
- WTW
- WITTENSTEIN
- WIPPERMANN
- WALTHER-PILOT
- webtrol
- WAGNER
- WOELFEL
- WIC VALVE
- WENGLOR
- WEH
- WARNER
- WAREX-VALVE
- WAGNER-GROUP
- WAGNER INSTRUMENTS
- WAGO
- WAGNERMETERS
- WEST
- WOERNER
- WEBTEC
- Wright Flow
- Wastecorp
- Weforma
- WYCO
- WEISS????????
- WYLER
- Walther prazision
- WEISS(?й???
- WEISS(?1???
- WEISS(?????
- Wachs(E.H. Wachs )
- WAIRCOM
- WALVOIL
- woods Powr-Grip???????
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