1.Steel pipe and steel plate in all kinds of grades and specifications2.adequent supply3. Standard:ASTM,AISI,JIS,DIN,EN,GB4. Surface: galvanized,painted or oiled for steel pipe ; Surface: mirror,2B,2A,BA,matte,brushed for steel sheet /plate4. High quality: certificate ISO9001, API, CE, CPD5. competitive price 6. best service