我想买这两个拖地机 http://www.amazon.com/dp/B00408PCEW/ref=gbsl_tit_l-1_0942_0a138b51?smid=ATVPDKIKX0DER&pf_rd_m=ATVPDKIKX0DER&pf_rd_t=701&pf_rd_s=left-new-1&pf_rd_r=1XQAP5QW5WZVMXR1MTRS&pf_rd_i=20&pf_rd_p=1740370942 扫地机 http://www.amazon.com/gp/product/B007JOJ9QQ/sr=1-1/qid=1395068389/ref=olp_product_details?ie=UTF8&me=&qid=1395068389&seller=&sr=1-1 这两个要收多少邮费？