Hello; About Mahlers; is a Rossön, Sweden based company founded in 1985. Its part of the construction machinery and accessories manufacturing industry. The Mahler truck grader blade is an accessory that optimizes any truck as it allows you to level and move the ground material by adjusting the angle of the blade. The accessory is designed to work in conjunction with a dump truck, which deposits the ground material on the ground and then takes a second turn to level. The truck grader blade has a small installation size and high ground clearance in transport made as well as being easy to mount. The blade is hydraulically operated with pilot controlled check valves for the planer blade extention function.