永利股份：公司主要从事轻型输送带和精密模塑业务

Group 1 - The company primarily engages in lightweight conveyor belts and precision molding businesses [2] - In the lightweight conveyor belt sector, the company offers a comprehensive range of products including PVC, TPU, TPO, TPEE, silicone-coated conveyor belts, non-woven conveyor belts, plastic chains & modular belts, and drive belts [2] - These products are widely applicable in various industries such as food, logistics, airports, tobacco, agricultural products, and timber [2] Group 2 - In the precision molding business, the company mainly produces and sells precision stamping molds, precision cavity molds, mold standard parts, high-precision plastic components, and hardware-plastic accessories [2] - The precision molding products serve industries including precision toys, consumer electronics, smart home appliances, communication equipment, and health medical devices [2]