Be being provided as a result of floor tile of wall of pottery and porcelain, wholesome clean is durable consumer goods, suffer coessential turn a product the influence of serious supply exceeds demand, the price rises fall change is opposite lag.

• 由于陶瓷墙地砖、卫生洁具是耐用消费品，受同质化产品严重供过于求的影响，价格升降变化相对滞后。