... , ect. Dimension:50*37-400*104 channel steel bar(high quality and low price)The products of Hengji Steel include ERW pipes ... power, steel structural products, building, etc. The company implements international and domestic standards including API SPEC 5CT, API SPEC5L,ASTMA53,CB ... products which will satisfy the needs of clients having different standard requirements.We’d like to express our desire to ...