Table 1. Manufacturing condition of CBP

Stage	Polyurethane content (%)	Particle size composition
Stage one	2.5	50% coarse: 50% powder
	3
	3.5
	4.5
Stage two	4.5	100% coarse
		100% powder
		50% coarse: 50% powder
		70% coarse: 30% powder
		30% coarse: 70% powder

CBP: chip block pallets.