Abstract: A resource recycling system and a product circulation system, wherein a search is made for information regarding specifications and production methods for a recovered product and an original product is produced with the recovered product used as resources. These systems include a plurality of production factories for producing a predetermined products, and housing a production apparatus and a reclamation factory. A communication network is connected for transmitting therebetween production information necessary for producing products. Also a recycle plate is created for identifying a production apparatus. The plate is used to transmit accounting information on an amount of money required to reproduce the product from the reclaimed resources. The reclamation apparatus also identifies a production apparatus by which a recovered product was produced, extracts production information on the recovered product and generates a disassembly procedure for the recovered product from the extracted production information.

Abstract: In a laser beam glass cutting method, a glass article to be cut (for example a moulded tumbler having a moil) is maintained at a high temperature below the softening point of the glass and then the glass is repeatedly irradiated with a laser beam along the required cut-off line by rotating the glass. During this step, a tensile force is applied by gravity or by a mechanical device to the part to be cut off. Following removal of the part, the edge of the glass is irradiated again with the laser beam to effect fire-polishing thereof, so as to improve the shape of that edge. During the irradiation by the laser beam, an auxiliary inert gas is blown into the glass article to prevent glass deposition.