Material: New Zealand,radiate pine

　　Length: 2.5, 2.9, 3.3, 3.36, 3.9, 4.5, 1.9, 5.9

　　Maximal bend: M=5.0kn/m, Maximal shearing force: Q=11.0kn

　　Characteristic:

　　low cost, high straight, weight light

　　generally be used, adapt to E2 environmental standard

　　high standardization of product parts, good to be reused