• BS-2040-3(quartzite)
• BS-2040-2(quartzite)
• BS-2040-1(sandstone)
• BS-2037-0
• BS-2036-2
• BS-2035-2(quartzite)
• BS-2035-1(multicolor)
• BS-2034(quartzite)
• BS-2032(S010)