- JohnLv 710 years agoFavorite Answer
It's an industry that does not need high-technology
The demand is fixed and not increasing.
Profit margin is low, why the cost other than material cost grows fast (land cost, labor cost, etc).
2010-03-31 11:59:06 補充：
利潤低, 除咗原料外, 其他成本又貴 (地方租金, 人工)