... - T5 Surface treatment: powder coating Glass entry sliding door thermal curtains sliding glass door 1.Aluminum:6063 T5 temper2.Surface:powder coating, ... INTRODUCTION:We are one of the leading manufacturer of aluminum , PVC - U ,aluminum wood composite , and wood doors and ... windows specialized in the design,manufacture and export of fixed, sliding, folding,casement, awning , hung and tilt&turn etc. ...