On our marking, we put information which is company’s name, grade, heat number, and specification number. There are 3 types of marking, Sticker, Ink-jet screen and Etching.
For sticker label, we put it on outside of sanitary tube ASTM A-270 and inside of ornamental tube ASTM A-554. For heat exchanger service tube ASTM A-249 and A-269 are marked by ink-jet screen. Only for special requirements, all types could be marked.
Production
