... - T5 Surface treatment: powder coating Glass entry sliding door thermal curtains sliding glass door 1.Aluminum:6063 T5 temper2.Surface:powder coating, ... specialized in the design,manufacture and export of fixed, sliding, folding,casement, awning , hung and tilt&turn etc ... ) Sound insulation,thermal break, water proof, air proof.3) Easy to operate and maintain4) Simple and convenient installation ...