... 2. 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. ... in the record.Standard: DIN2391, EN10305-1, EN10305-3.Steel grade: ST35, ST37, ST45, ST52, E235, ... wooden case packing for sea transportation.EN10204/3.1 mill test certificate is sent together with ...