... Effectively prevent the crab, the product use fled cost is one-fifth of the old product, service life of two ... years. Nanjing LeJie new material Co., LTD LeJie brand crab is fled against the national xinghuo plan ... invention, patent number: 200310106365.4, this product cost is one-fifth of the old product and service life of two ... board Crab protection Nanjing LeJie new material Co., LTD