Long welding neck flanges

Size: 1) 3/8"-144" 2) Making as drawings clients request Flanges types: slip on flanges, welding neck flanges, long welding neck flanges, blind flanges, plate flanges, socket welding flanges, threaded flanges, lap joint flanges, orifice flanges, loose plate flanges. Material: Carbon Steel A105, A36, Rst37.2, St37.2, C22.8, SA350 LF2/LF1, Q235, Q345, SS400, SF45, S235GRJ2 Flanges Surface: RF FF RTJ Surface Treatment: antirust oil, yellow, epoxy coating, nylon surface,hot galvanized,electrical galvanized Making type: forged or casted Standard: ANSIB16.5/B16.47/B16.48/B16.36, ASME, MSS SP44, AWWA C207, DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673 BS4504/10, JIS, EN 1092, NF, API590 FIG.8, GB. PRESSURE GRADE: ASME/ANSI B16.5: 150LBS, 300LBS,400LBS, 600LBS, 900LBS, 1500LBS, 2500LBS DIN: 6Bar, 10Bar, 16Bar, 25Bar, 40Bar BS4504: PN2.5-PN40 BS10: Table D, E, F, H JIS: 5K,10K, 16K, 20K, 30K Exporting Destination: European, Americas, Asia, Middle-east countries