... quality.Click system: arc click, single click, valinge click, V-groove four sideHDF material:>860kg/m3Formaldehyde emission: E1<1.5MG ... flooring: for its unique surface, speical color and style.v-groove laminate flooring Lodgi E.I.R series makes itself ... Click system: arc click, single click, valinge click, (Valinge & Unilin) V-groove four side. HDF material: about 880kg/m3Formaldehyde emission: E1 ...