【正文】
ATION NO SMOKING ANYTIME CIRCULATING AIR PRAXAIR Business Confidential PROPER CYLINDER SEPARATION FLAMMABLE GAS OXYGEN 2039。 OXYGEN FLAMMABLE GAS 539。 PRAXAIR Business Confidential CYLINDER SECURITY CONSTRUCTION SITE PRAXAIR Business Confidential NEVER GROUND CYLINDERS ARC TRANSFER AREAS STRUCTURAL BEAM WEAKENING AND POSSIBLE RUPTURE PRAXAIR Business Confidential PREVENTION OF ARC BURNS ON CYLINDERS SECURE CYLINDERS WOOD NONCONDUCTING STRAP