Embodiments relate to stress sensing devices and methods. The pressure-sensitive adhesive is use in pressure-sensitive adhesive optical films and so on that is excellent in terms of both durability and release property. In another aspect, the policies are created in the GUI format, sent over a network to a service center in the same format, and are loaded, manipulated and stored in the same format. When the internal pressure of the airbag exceeds a predetermined pressure, the tearable portions are torn so as to increase the lengths of the straps, whereby the restriction of the airbag is eased. To this end, a plurality of pistons supporting, at one of their respective ends, lower mold cavities have the other ends thereof slidably inserted in hydraulic cylinder blocks installed on lower mold sets. 2\ue89e\ue89ePgate\ue89e\ue89emin+0.