we are the exporter of Onyx blocks. we have regularly export TO China. We have Afghan Dark Green Onyx Light Green Afghan White Onyx Blocks with good quality. if you are interested please let us know at alialways@hotmail.com sohailmarblenonyx@live.com Thanking you Muhammad Ali Sohail Sohail Marble & Onyx Ind. 0092-321-2840571 0092-336-2030436