ASTM ANSI B16.5, ASA, API-605, AWWA-c207, MSS-sp44. ASTM ANSI B16.5, ASA, API-605, AWWA-c207, MSS-sp44. DIN2573,2572,2631,2576,2632,2633,2543,2544,2634,2545 etc. BS4504, PN16, PN25, PN40, BS10, TAB ... ...
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