Model:16,19,22,25,29
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1,sucker rod coumpling
2,dia 1",5/8",3/4",7/8",1-1/8"
3,API SPEC 11B
4,category grade T,grade SM,full size,slim hole

1,sucker rod coumpling
2,dia 1",5/8",3/4",7/8",1-1/8"
3,API SPEC 11B
4,category grade T,grade SM,full size,slim hole


