DX53D+AS跟SA1D区别。镀铝0.50*1219*CDX53D+AS马钢5.26660镀铝0.50*1219*CDX51D+AS唐钢600镀铝0.50*1219*CDX53D+AS马钢7.6256660镀铝0.50*1219*CDX53D+AS马钢10.0456660镀铝0.50*1219*CDX53D+AS唐钢600镀铝0.60*1219*CDX53D+AS唐钢600镀铝0.60*1219*CDX53D+AS马钢5.7956510镀铝0.60*1219*CDX53D+AS马钢6.286510镀铝0.60*1219*CDX53D+AS马钢5.8456510镀铝0.60*1219*CDX51D+AS唐钢600镀铝0.80*1219*CDX53D+AS马钢7.76430镀铝0.80*1219*CDX53D+AS马钢7.676430镀铝0.80*1219*CDX53D+AS马钢7.6756430镀铝0.80*1219*CDX53D+AS马钢8.0056430镀铝0.80*1219*CDX51D+AS唐钢600镀铝0.80*1219*CDX53D+AS马钢7.696430镀铝0.80*1219*CDX53D+AS唐钢600镀铝0.80*1219*CDX53D+AS马钢7.9156430镀铝1.00*1219*CDX53D+AS唐钢600镀铝1.00*1219*CDX51D+AS唐钢600镀铝1.00*1219*CDX53D+AS马钢7.7956260镀铝1.20*1219*CDX53D+AS马钢86360镀铝1.20*1219*CDX53D+AS马钢6.8756360)