Global Certified
ISO 9001:2008/LR
Global Certified
ISO 9001:2008/TUV
Testimonials
钢管
钢管 －尺寸: 1/2”~50” －壁厚等级:sch5,10,20,30,40,60,80,100,120,140,160,STD,XS,XXS,sch5s,10s,40s,80s
ISO 9001:2008/LR
ISO 9001:2008/TUV
钢管 －尺寸: 1/2”~50” －壁厚等级:sch5,10,20,30,40,60,80,100,120,140,160,STD,XS,XXS,sch5s,10s,40s,80s