Standard: JIS, AISI, ASTM, GB, DIN, EN Place of Origin: Guangdong, China (Mainland) Brand Name: Ming Gang Model Number: 304 Type: Welded Steel Grade: 300 Series Application: construction and decoration Certification :ISO Thickness: 0.18mm ~3.0mm Outer Diameter :9.5mm~219.08mm. According to customers' demands.