... support cushions 1.material-- soft PU high elasticity 2.technology--PU foaming PU foam part, memory foam seat and back support cushions1.material-- ... will be supplied to customers for judgments.2, Mass production quality control2,During the mass production, we will check the ... 98% products are qualified after all products finished.3,Quality control of package3,We all use Double-corrugated rigid kraft ...