... static, anti-crack2,METALMade in the national standard steel pipe, welded by the industrial robot, strong and smooth3,DECKUse the automatic punching machines, skid ... changing, it is difficult to achieve the uniformity of the quality. In addition, welded by robot make the product solid, no glitches, no ... factors, product quality is stable and reliable, production is rapid. The sun roof palyground