Solutions for advanced hydraulic systems Quality Customer Satisfaction • Satisfaction of our customers is the main focus of our work in all working areas Quality Surveillance • Compliance with our high-level quality standard is of main importance for every process and in all workteams Certification • Certified since 1993 according to DIN EN ISO 9001 • Upgraded to DIN EN ISO 9001:2000 in the year 2002 • Upgraded to DIN EN ISO 9001:2008 in the year 2009     Company Development Production Sales Quality Imprint Applications Products News & Downloads Services Contact Home Certificate DQS.pdf WESSEL Tool Control plus Upgrading of construction machines equiped with Quick-Coupler-Systems. Proportional control of up to 16 different attachments Load Holding Valves The key for a safe machine: Requirements for Load Holding Valves. . . . Loweríng Brake Valves Safe valve technology for mobile construction machines Main Valve Proportional Control Valve for mobile applications, LS- valve in sectional construction With effect form October 2011 our company is certified by german customs as AEO-F