... (A36)ASTM(A123)BritainBS4592-1995BS4360(43A )BS729AustraliaAS1657-1992AS3679AS16502. Rubber Stair Tread Bearing Bar Sizes: 1"x1/8",1-1/4"x1/8 ... .33mm,35.33mm,38mm,40mm,41.25mm,50mm,60mm4. Rubber Stair Tread Cross Bar Pitches: 38.1mm, 50mm, 75mm, and 100mm,101 ... is a leading enterprise which engaged in manufacturing and trading high quality wire meshes.After long years of development, Our company has ...