The ground track is mainly used for assembly, testing, welding and inspection of large equipment.
The advantages of the ground: do not make a large platform, which saves the cost of materials, but also can take up a small space, can be described as cost-effective.
Ground rail material: high-strength cast iron HT200-300, the face hardness HB170-240, after two manual processing (artificial annealing 600 degrees -700 degrees or natural aging 2 to 3 years) to make the product accuracy and wear, wear Good performance.
Ground rail commonly used modeling method: sand type.
Ground modeling materials: sand, clay sand, core sand, resin sand.