Three layer one strip engineered wood flooring/parquet flooring 1860x189x15mm/4mm 1860x148x15mm/4mm 1860x189x14mm/3mm 1860x148x14mm/3mm Top layer: 4mm oak,maple,ash Core:poplar Bottom: poplar NO-BEVEL or V-BEVEL T&G or Click system Unfinished, Lacquered, Brushed,stained and oiled Humidity:6-8% Grade:AB,C and ABC Quality certificate:CQC ISO9002 Deliver date:in 3-6weeks Payment term:L/C at sight