*Frame and fan angle adopt isopiestic strip,double sealing strip,ensure the gas confined function,form the isopiestic room structurally and meanwhile drains water effectively according to isopiestic principle.

*Accessories can be simply operated,directly located,and quickly installed.

*Hardware has strong loading capacity,and can meet the maximum weight of the window 130kg.

*Standard inward opening tilt & turn design,fulfill the inward opening tilt & turn function,high security.

*Open-state monitoring and alarming devices and be installed for specially repuired windows and doors.

*Adopt symmetrical structured three cavity profile system,heat insulation strip of profile separated into "I" and "T"type.

*Specialized plastic injection channel is set up at angle joint to ensure that the internal and back of the angle joint is sealed effectively,and strengthen the angle.

*Special angle steel sheet enhances the angle quality of the hanging arm of the frame and fan angle,and make the joint angle more even.

*Treatment for profile surface:anodic oxidation,electrophoretic painting,powder coating,fluoro-carbon painting.

*For hardware:Germany Roto,Germany Siegenia,Hongkong Kinlong,Italian Giess.

*For glass:5mm+9a+5mm insulating,5mm+12a+5mm insulating,5mm+9a+5mm+9a+5mm double insulating function glass.

*Different strengthening club can reach different level of anti-wind and pressure performance.

*Different sound insulation performance of different glasses can reach 30dB,35dB,40dB.

*Different heat insulation performance of different serial of profile and different glass can reach 2.8W/(m2k),2.5W/(m2k),2.1W/(m2k) or below 2.0W/(m2k).