... produced and exported long weld neck flange to ANSI /DIN/BS for over 10 years with good quality. Dimension Standards and ... 2000-20000 AWWA C207 4inch -144inch CLASS B-F DIN/BS/JIS 10-4000mm PN2.5-40Materials: carbon steel or stainless ... , B(API605), AWWA C207, DIN2527, DIN2631, 2632, 2633, 2634, 2635 BS; OR according to customers' drawings and requirementsMaterial: A105,SS400,304 ...