... :red, yellow,white,black, bronw,etc.2)Materials:Pottery clay or clay3.L*W*H(mm):100*200*40/50 ... courtyards,patios,etc 5.Product Certificate:ISO 9001:2008 Square Brick Appearance Quality Physical And Chemical Indicators ItemsRequirements Positive Skin and ... ≤10.0mm Through The CracksNot Allowed StratifiedNot Allowed Square Brick Size Tolerance Of Physical And Chemical Items Requirements Length, ...