Purlin machine company researchers carefully developed a small component forming machine.

The main purlin purlin purlin purlin and time points. Because the durability and price, cement purlin than wood and steel structure is applied more widely, along the length of the room on the roof, the distribution of the component level, located on the principal rafter, supporting secondary to the rafters.

In the roof slope roof often use on the roof truss or rafter, add a shop sheathing and waterproof layer, as downstream of the attachment member. Modern housing structure commonly used cement cement as purlin purlin, slope houses purlin, have better endurance. The housing structure of the support member, cement slope than steel structure and purlin wood structure has more advantages.