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ƷͺţZ11Y.Z61Y 
ͨNPS3/8"~2" 
ѹClass150-800LB 
ýʣˮƷ 
¶ȣ-29桫550 
ҪʣA105A182F22A1 82 F304LA182 F316L 
Ʊ׼API 602BS5352ANSI B16.34 
գAPI 598 
ʶ׼MSS SP-25



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