Inquiry (采购产品): Jack screws I need information on 4" steel jack screws, 12 feet in length, to support upper floor of a house under construction. Thank you for a timely response, Andy Woods **** Hidden Message ***** Andy Woods 1594 Cheatham Dam Rd 1602 Cheatham Dam Rd Ashland City, TN 37015 USA Company: Woods Enterprises Phone: 615-792-4479 Fax: 615-792-4479 E-mail: andywoods1@charter.net **** Hidden Message ***** andywoods1@charter.net