... gantry crane, Gantry-type NC planer drilling machine, Automatic numerical control, large hot galvanizing line, Large assembly platform, Band ... line, Hydraulic NC 3-roll plate bending machine.d)Certificate:Certificate for Qualification of Construction Enteprise, Corporate ... , Contract-Abiding and Promise-Keeping Enterprise, CQM Certification.d)Products:Electric Tower, Telecom Steel Tower, TV/radio ...