=========跟单区（id,item, qty, link, price, contact)=============
跟单
item：GNC Calcimate Plus 800; 500 Caplets
qty：10(buy 5 get 5 free)
link：http://www.gnc.com/product/index.jsp?productId=11127256
price: $29.99 *5
item：GNC Triple Lecithin 1200;90 Softgel Capsules
qty：20 (buy 10get 10free)
link：http://www.gnc.com/product/index.jsp?productId=2133422
price: $12.99 * 10
hp:97836018
qty：10(buy 5 get 5 free)
link：http://www.gnc.com/product/index.jsp?productId=11127256
price: $29.99 *5
item：GNC Triple Lecithin 1200;90 Softgel Capsules
qty：20 (buy 10get 10free)
link：http://www.gnc.com/product/index.jsp?productId=2133422
price: $12.99 * 10
hp:97836018
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