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 It is IRODORITAI in Dyed veneer!
I want to color WELCOME TO IRODORITAI tree more.
Dyeing Birch veneer laminated wood
Dyeing Birch veneer laminated wood NC processing
Dyeing Birch veneer laminating plywood
The Dyed veneer which sliced a dyeing plate! Patent pending
Dyeing cedar panel WAVE processing 
 High added value by the domestic lumber dyeing
 Dyed wood / Dye penetrated wood turns existing interior.
 
The charm of the tree, the power of the tree more.
You can see the English site here.

Fire Retardant Treated Wood

FRT WOOD –fire retardant treated wood- is a construction material which is manufactured by soaking or vacuum pressuring a boric acid or a phosphoric acid into natural Japanese Cedar and Hinoki Cypress . This allows for the lumber to stay close to its natural state while acquiring fire retardant properties. The Japanese Building Standards Act was revised for this type of fire resistant lumber to be used in several types of buildings. The product has to be authorized by the Japanese minister of Land, infrastructure and transport to meet its expectations and highest standards. The product has passed "cone calorie meter" test.
The requirements of this test are listed below.
1. Whole calorie count must be below 8MJ/M2.
2. There must be no damage to the materials after
heating including cracks, warping and deformities.
3. It must not be exceed 200KW/M2 in the
maximum heat.
4. It must not emit toxic gasses.
If the requirements above have been met, its rank is classified as follows;
- Non Combustible Material = 20 minutes
- Quasi Noncombustible Material = 10 minutes
- Fire Retardant Material = 5 minutes
Since Japan is prone to natural disasters, strict guide lines are put in place. We have passed this strict product testing.

Certification

Non Combustible wood

NM-1704
Japanese cedar 12-50mm
NM-1701
Hinoki 12-50mm
NM-1423
Japanese cedar 18-150mm
NM-1423
Hinoki 18-150mm
NM-1520
Japanese cedar 18-300mm + Urethane paint
NM-2121
Hinoki 18-150mm+Urethane paint

Quasi Non Combustible wood

QM-0537
Japanese cedar 6mm + SUBSTRATE & Urethane paint
QM-0505
Japanese cedar 6mm + SUBSTRAYE MATERIAL
QM-0505
Hinoki 6mm + SUBSTRATE MATERIAL
QM-0236
Japanese cedar 10-50mm
QM-0531
Japanese cedar 10-50mm + Urethane paint
QM-0437
Hinoki 10-150mm
QM-0529
Hinoki 10-150mm + Urethane paint

Fire Retardant wood

RM-0001
Japanese cedar 15mm
RM-0036
Japanese cedar 15mm + Urethane paint
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Nakamura Tsukiita Inc.
〒831-0008
677, Kanegae, Okawa-shi, Fukuoka, Japan
TEL. +81-944-87-7060
FAX. +81-944-87-8360
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