zinc nails: 1standard:DIN,GB,ASTM,BS,or by client ... 8,10.9 4Certificate:ISO9001:2008,SGS Fasteners big zinc nails Details of the product: 1.Size: By your ... , DIN, AS, GB and so on.3.Surface treatment :Electro-galvanization (Black, Hot-dip galvanization, Dacroment and so on.)4 ... Production Permission License from the Ministry of Railways, P.R.China. 2.From 2006, we have manufactured the products of ...