... A.Elaborate handwork B.High quality Sleepwell mattress,Pocket spring mattress,Royal Star Brand,RS-MT711 1.Detail of ... concept, resonable price,reliable delivery time.c.High quality,fine workmanship.d.Perfect workmanship can be knocked down,easy ... from Fantastic. . A.Production processProducing springs Reinforcing spring edge Attention:all the spring frame will be fire-cured in 300centigrade condition ...