Rosinpack, a professional plastic thermoforming packaging manufacturer with years of experience in food thermoforming packaging, independently developed a complete set of disposable 4 compartment black lunch boxes with high-transparency OPS lids. End-to-end automated thermoforming, supporting full customization of dimensions, partitions, printing, and thickness. Offering one-stop delivery from mold development, sheet production to finished product shipment, with no middleman markup. Stable bulk supply meets domestic and international commercial catering procurement needs.