... , bright and galvanized C: Length of each pipe: 500mm-12,000mm D: Steel grade: carbon and stainless E: Conforms to international standards, ... like: ASTM A53, ASTM A500, ASTM A513, BS1387, JIS G3468 To date, more and more clients, ... from China to Japan, Korea, Southeast Asian Nations and part of American and European countries have started to select our products, ...