Complex sentence: Lacquer vessels, boxes and trays have a coiled or woven bamboo-strip base often mixed with horsehair, and the thitsee may be mixed with ashes or sawdust to form a putty-like substance called "thayo" which can be sculpted.
Split into simpler sentences: Lacquer vessels, boxes and trays have a coiled or woven bamboo-strip base often mixed with horsehair. The thitsee may be mixed with ashes or sawdust to form a putty-like substance called "thayo" which can be sculpted.