... casement window: 1.Weight light 2.Easy installation 3.Good fireproofing 1.elegant appearance 2.lowest price with best quality3.sound proofing and ... ~30mm.6.hardware:handle,transmission,friction hinge,7.type:outward casement window8.series:60mm,88mm,114mm,LG,CONCH,VEKE,ROTO,etc ... 'll receive our reply in 24 hours. ^_^ white PVC top-hung window