... southwest of Shandong . 1) Materials: limestone2) Color: Blue, beige3) Feature: durable, non-toxic, non-radioactive, ... with IPPC regulation.Sculptures: 1) Materials: blue limestone, yellow limestone, white marbles etc.2) Feature: excellent ... stoneswe are limestone manufacturer in China,blue limestone,blue limestone tiles,beige limestone, yellow limestone.This kinds of blue limestone (blue stone) is ...