Shandong Oulan Steel Co., Ltd. 
Produsen kustomProduk utama: PPGI/PPGL, gulungan baja galvanis, kumparan baja Galvalume, kumparan baja gulung dingin/gulungan baja gulung panas, lembaran atap
Supplier assessment proceduresFinished product inspectionPatents awarded (1)On-site material inspection
