Quartz stone size: 3250*1650mm,3050*1250mm Thickness: 12-30mm Our engineered quartz countertop has passed stone quality supervision center Guangdong ... East, Asia, Europe so on.Our engineered quartz stone is composed of 93% natural quartz and 7% ... . Size a. maximum size : 3200x1600mm, 3000x1400mm available b. cutting size :300X300mm, 400X400mm, 600X600mm available c. thickness : 12 mm,15mm, 18mm, 20mm ...