Manufacturing Standard	Material
YB/T4001-1998, ANSI/NAAMM(MBG531-88), BS4592 – 1987…	JIS G3101, GB 700_88, ASTM A36, Composite, Inox…

a.Standard panels & Fabricated gratings

b. Stair treads

 

c. Manhole cover, Technical groove

d. Phụ kiện thép sàn.