... - Labrotary - Workshops - Equipments Packaging:Double-layer packaging, outer is woven bag and inner is plastic film bag, net weight 25kg, special packaging ... -tech industrial development zone of Zibo city in Shandong province, where is one of the largest aluminium production bases in China. Wufeng ... Company covers an area of over 20,000 m2, has 5,500 m2 of production workshops, 4500 m2 of office & ...