It used to load-bearing structure of automotive steel materials, surface Dulu:xin processed through 14-20 Road processes flat shape, mainly for wall and floor loading bar.

• 它采用汽车用钢板材料为承重结构，表面镀铝锌处理后，经过14-20道工序压延成形，主要用于墙体及楼面的承重骨架。