BUY BIRCH TIMBER
RIZHAO DAHAI INDUSTRIES & TRADING I
1. unedged or edged birch board for the quality description you can find here:
A/B grade mixed , cut out from good quality logs , diameter from 22cm+up , red heart plank not exceed 5% of total quantity , and about this 5% red heart plank only allowed in one side.
width: free but minimum is 80mm , not allowed negative tolerance.
thickness :20/23mm(20mm 20%, 23mm 80%),positive tolerance 1mm-2mm.
length: 2.5m+up ,positive tolerance 100mm , not allowed negative tolerance , if the klin dried lumber have crack ,the measurement should be deduct.
measurement: measure of width is made after kiln drying in the middle of the plank on the top side from bark to bark .
marking :width is marked on each plank ,all measurements are pointed in specification which is provided with the load accordingly .
packaging: planks are loaded into containers on one way pallets.
drying : 6%-10%
Quantity :3000CBM each month .
2, planed birch lumber quality description you could find here: quality A/A , 4 SIDES CLEAN ,normal white color ,no any defects ,no brownish wood ,no dead knots ,not rot ,no wormy pin ,no insect damage ,no inside or end end cracking ,positive tolerance us 1mm-2mm for width and thickness ,20mm for length .(for example , if the actual size is 1159mm*41mm*20mm , the payable size is 1139mm*40mm*19mm)
Quantity :1000CBM each month .