... materialacryl, perspex, glass, wood, stone, marble, gravestone, rubber, leather,fabric, paper, cltoh, dual-colour boards.etc Applicabe industry: a. stone: ... etc.b.artcrafts: wood,bamboo,elephant's tusk,bone,leather,marble,sea shell etc.c. advertisement:double color ... process:compound leather,man-made leather,fabric,fur ,toy etc. g. other industry : marble,granite,glass,crystal engraving,paper/greeting ...