... . Production based on DIN2391, EN10305-1, EN10305-3 , 3. High precision on the tolerance of tube size. ... Production based on DIN2391, EN10305-1, EN10305-3.3. High precision on the tolerance of tube size ... , ST45, ST52, E235, E355.Tube OD: 5-80mmTube WT: 1.5-8mmCondition: BK, BKW, BKS, NBK, GBK. ... reinforced wooden case packing for sea transportation.EN10204/3.1 mill test certificate is sent together ...