... , GB 2. Certification: ISO9001:2000 3. Type: 10-63# Stainless I beam:1. Standard: BS, JIS, ASTM, GB2. Certification: ISO9001:20003 ... Size: 100×68×4.5mm-630×178×15mm5. Various stainless I beam can be made as per customer's requirements.6 ... ,301, 304, 310s, 316, 316L, 321, 904L,etc.7. Application: Chemical industry, construction, engineering structure, machinery processing, parts processing, boiler, etc8 ...