Keystone Engineering is a leading innovator and manufacturer of drum and tooling systems for concrete and asphalt grinding. We provide high-performance tooling for a wide range of existing grinding and surface-preparation equipment and offer a complete line of skid-steer attachments for pavement markings removal, coatings removal, surface leveling, bump grinding, joint repair, saw cutting and surface preparation. Keystone Engineering is committed to precision manufacturing, customization, and customer service—ensuring that the right tool is engineered for every job | Keystone Engineering is a leading manufacturer of asphalt grinding equipment. Keystone offers an extensive line of aftermarket drum and tooling systems for all milling, reclaiming, recycling and pavement marking machines and a complete line of skid steer attachments for bump grinding/IRI improvement, saw cutting, joint repair and pavement markings removal. Keystone is committed to custom manufacturing to ensure the right grinding tool is available for any job. Keystone was established in 1980 and all products are proudly made in the USA.
Calvin Group Inc
We specialize in buying / selling asphalt paving equipment in the United States, Canada, Mexico as well as other international countries. If you are looking for or wanting to dispose of asphalt pavers, road wideners, shuttle buggy’s, rollers or compactors, distributors, chip spreaders, reclaimer, stabilizers, force feed Loaders, drop hammers, etc. please let us know. With over 30 years of experience in the construction equipment sales business, we hope that we can be of assistance to you in your asphalt equipment needs.
Allen Engineering Corp
Our goal is to be the premier, global provider of concrete and related equipment solutions for professional contractors. We provide innovative concrete and related equipment that solves professional contractors’ major quality and productivity issues on their job sites. | Allen Engineering is a family-owned business, based in Northeast Arkansas, that proudly employs 120+ people. With this team, we design, engineer, manufacture, and market concrete equipment in our Allen and Allen Concrete Pavers product lines. These products are used in concrete placing, finishing, polishing, and paving applications. Allen Engineering is also the exclusive distributor of Magic Screed® in the United States.