Shandong Guancheng Machinery Co., Ltd. is a joint-stock enterprise integrating machinery design, machinery manufacturing and machinery trade. It mainly deals in dry mortar equipment, concrete mixing plants, wet mortar mixing plants, prefabricated PC mixing plants, vertical planetary main machines, environmentally friendly concrete mixing plants, solid waste treatment equipment, ready-mixed fluidized solidified soil mixing plants and other equipment.

Leisheng is a source manufacturer of office machinery and post-press equipment specializing in the production and sale of high-quality staplers, laminators, binders, glue binders and other products. Its products are widely used in graphic production, office supplies, printing and other industries.