FC-6型吸顶通风窗
FC-6 Ceiling Air Inlet
固定板采用优质ABS工程塑料注塑而成，抗腐蚀、不变形；Mounting plate is made of excellent ABS engineering plastic by injection molding. Anti-corrosion, Non-deformation.
外框和风门均采用优质PVC塑料挤塑制成；采用中空设计，并加有海绵保温层，密封良好；Frame & Air door are made of excellent PVC plastic by extrusion molding. Adopt hollow design, add sponge for thermal insulation and good sealing.
风门采用自垂设计，开启灵活；打开机构、锁紧螺钉均采用不锈钢制成、使用寿命长、不生锈；设计灵活，风窗长度可根据要求任意组装；Air door is opened under gravity.Opening system and locking screws are made of stainless steel, long lifespan and rustless.Flexible design, The length of air inlet can be customized.