quality CRS steel sheet 13/15/17points lock system competitive price timely delivery recommend steel thcikness:1.0/1.5mm Features:Item No:YA88271) Material: cold-rolled steel2) Frame outer size (H x W):2,050 x 860mm;1,970 x 860mm;2,050 x 960mm;1,970 x 960mm3) Steel Sheet Thinckess of Doorleaf: 0.4~1.0mm4)Steel Steet Thickness of Doorframe:0.8~2.0mm5)Doorleaf thickness: 50mm , 70mm6) Opening ...