... Contract Qualification and Fabrication qualification (Class A),Design Qualification(Class B) which is issued by Ministry of Construction of P.R ... of USD160 million.We also manufacture PU sandwich panel, steel roofing tile,EPS panel, H-beam,Z-beam,steel column, girder and ... climate: wind speed, snow load, etc .4.Insulation material :sandwich panel or steel sheet.5.Crane beam: Do you need crane ...