Rui’an Douchuan 3D Technology focuses on additive manufacturing across footwear and figurine/model products, running a closed-loop operation that covers its own 3D printer production line, self-developed printing materials, and in-house product design. The company says its printers run roughly 80% faster than industry-standard equipment while keeping production quality and consistency under control at scale. Its design team handles parametric modeling, lightweight lattice/hollow-structure shoe development, figurine customization, and rapid prototyping, and it supports partners with combined hardware-plus-material technical training and after-sales service to help them stand up their own 3D printing production. Under the Salodin brand specifically, the company applies lattice-structure design (aimed at lightweight, cushioning, and customizable shoe soles/uppers) paired with its industrial-grade printing equipment to producing “future footwear.