Inquiry (采购产品): hdd 20ton specs. please send me full specs. for hdd system not less than 20 ton thrust / pull back force complete with mud system , navigation system , drill stem max. lenth , max. diameter and length and depth of crossing to be done by the machine awaiting your quick reply at r.mail a.s.a.p thank you for quick response hasshab@yahoo.com hassan habib **** Hidden Message ***** hassan habib hasshab@yahoo.com hashab@maktoob.com cairo, AL 02 EGY Company: personal Title: engineer Phone: 022339820 Fax: non E-mail: hasshab@yahoo.com **** Hidden Message ***** hasshab@yahoo.com