... with reasonable price 2)Green environmental protection 2)Good Airtight&watertight 4)50 year life 60,80,88 series UPVC PROFILE FOR ... bubbles, cracks. SmoothElongation at break,%≥100Dimension change after heating,%±2.5Bending elasticity modulus, MPa≥1960Oxgen index,%≥38Low temperature drop weight ... A≥40≥15Size B≥22Size B≥32≥12Color change,grade≥3 Packing: Plastic film, or Customer' request.20''FCL: ...