... :30%TT in advance,balance pay against the copy of B/L5.DELIVERY TIME:7-10days first container6.Advantages: ... free products, 7) Good frost resistance, 8) Outstanding ability of preventing osmosis, 9) Fine waterproofness amd interneration, 10) Easy to ... quality assurance2,economic and cost saving for construction on whole process3.save time and fast completed Low cost of construction material blocks ...