Half slabs and big slabs

Granite slabs are fabricated by the sawing of granite blocks in the desired thickness, mostly for use as a flooring material. The granite blocks are cut by granite gang saw machines, then the sawn granite slabs are polished on polishing machines, or flamed by hand, at last polished or flamed slabs are cut and finished by other processing machines. Granite slabs are made available in a wide range of sizes for multiple uses, the edges can be sawn or natural. Large granite slab is used for flooring, wall cladding, counter tops, thick granite slabs are used for gravestones, tombstones, plaques, stone arts or crafts etc. We export large quantity of granite slabs to many countries from China every year.
the standard size of big Gangsaw slab is 120up x 240up x 2 cm or 120up x 240up x 3 cm,
the references sizes for half slabs are as follows.
Thickness could be 10mm, 12mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 25mm, 30mm, 40mm, etc.
Reference sizes as follows.
1800mm Length up X 600mm width up
1800mm Length up X 650mm width up                                                    
1800mm Length up X 700mm width up                                                 
1800mm Length up X 750mm width up                                                  
1800mm Length up X 800mm width up                                                   
1800mm Length up X 900mm width up                                                   
1800mm Length up X 1000mm width up
2400mm Length up X 600mm width up
2400mm Length up X 650mm width up                                                    
2400mm Length up X 700mm width up                                                
2400mm Length up X 750mm width up                                                  
2400mm Length up X 800mm width up                                                   
2400mm Length up X 900mm width up                                                   
2400mm Length up X 1000mm width up