Due to the noted individual cases of loss of gas hose properties, which may pose a potential danger to the user, please return all roofing and gas soldering sets, models 31B005, 31B010, 31B011, 31B021, 31B022, 31B024. The kits should be sent back to the head office of Dedra-Exim Sp. z o.o. in Pruszków, ul. 3 Maja 8, 05-800 Pruszków. End users are requested to return the products to the outlets where they purchased them. Corrective invoices will be issued for the returned products.