Firma such Lieferanten von Verbindungselementen aus Edelstahl nach Verordnung der Europäischen Bauprodukte EU 305/2011: - bolts (hex bolts similar to type DIN 931+933) A2+a4 - washers (similar to type din 9021+125) A2+a4 - nuts (similar to type din 934) A2+a4 - threaded rods A2+a4 which need to certified "CE" or other certifcates which confirm these items are suitable for use in constructions according European Construction Products Regulation EU 305/2011 Please specify - what norms are you able to produce which are suitable for constructions(for example din 933 or 931 need to be done in DIN EN ISO 3506-1) - what certificates you can deliver with it (CE, or other which are suitable for use in constructions according attached regulation ?? 2,1 or 3,1 certificates are not suitable for this subject) After our customer will accept suggested norms and certificates - we can send you the suitable inquire with quantity each. Attached regulation came to Poland in January 2017 - and we many customer asking about these fasteners - so we are very interested to buy them after the customers accept suggested norms and certficates which you are able to deliver.