Southern pine grows in the southern part of the United States, from East Texas to Virginia. Pinus koraiensis or Pinus koraiensis are four main tree species, namely, short leaf pine, long leaf pine, slash pine and loblolly pine.
Among all conifers, southern pine has the highest design value. Southern pine has won the reputation of "the best structural tree species in the world". Durability southern pine is durable. It is an ideal material for making wooden Road, terrace and outdoor floor.
The moisture content of imported southern pine is normally limited below 19%. Wood marked "kd19" has a maximum moisture content of 19%. Wood marked with "kd15" has a moisture content of 15%
Nail holding force
Among all softwood, southern pine has the strongest nail holding ability. After drying or air drying, the nail holding power of southern pine was enhanced. Treatability southern pine is an ideal tree species for pressure antiseptic treatment. The unique molecular structure of southern pine can make preservatives evenly penetrate into the wood and effectively prevent fungi, termites and microorganisms from eating wood.
The whole production process of Pinus nannanensis is monitored and controlled under pressure. Under the action of pressure, the water-soluble preservative is pressed into the wood cells in a closed pressure tank. The chemical reaction combines the preservative and wood fiber to form an actual insoluble mixture. After 60 years of dissolution test, it has been proved that the mixture is insoluble. When the anticorrosive material is taken out of the pressure tank, the preservative can be firmly fixed on the wood fiber because of the chemical curing between the preservative and the wood fiber.
The processing performance of Pinus nannanensis treated with anti-corrosion was not affected. Even if exposed to the wind and rain or in contact with the ground or used in high temperature areas, it is not easy to rot.
After preservative treatment, the service life of wood products can be prolonged by more than 3-5 times. Increasing the use of preservative wood and controlling the cutting progress of forest resources will protect the natural environment more effectively. After rigorous testing, science has proved that preservative wood is more durable than untreated wood and more acceptable to consumers in appearance. After pressure treatment, Pinus australis can be used for: deck, patio, plank to wharf, fence, outdoor furniture, terrace, promenade, bridge, floor, store signboard, flowerpot, bench, gymnasium seat, platform base, game room, entertainment facilities, storehouse, lattice shed, corridor, step, roller coaster, railing, road sign, noise barrier, retaining wall and waterproof wall