FYOU PMEC is the leading supplier of gauges for both plug & ring thread gages in china, FYOU PMEC will meet your requirements and custom build your thread gages to meet your exact specifications. Our gage engineering team is ready to design and work with you on all your thread gaging needs; FYOU PMEC provide a complete line of API (American Petroleum Institute) plug and ring gages for(both working & masters):
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BCSG
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CSG
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NC
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IF
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TBG(NU)
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UP TBG
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REG
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FH
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4 1/2 BCSG
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4 1/2 CSG
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NC23
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2 3/8 IF
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2 3/8 TBG (NU)
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2 3/8 UP TBG(EUE)
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2 3/8 REG
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2 7/8 FH
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5″BCSG
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5″CSG
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NC26
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2 3/7 IF
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2 7/8 TBG (NU)
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2 7/8 UP TBG(EUE)
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2 7/8 REG
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3 1/2 FH
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5 1/2 BCSG
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5 1/2 CSG
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NC31
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3 1/2 IF
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3 1/2 TBG (NU)
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3 1/2 UP TBG(EUE)
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3 1/2 REG
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4"FH
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6 5/8 BCSG
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6 5/8 CSG
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NC35
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4 "IF
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4“ TBG (NU)
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4 UP TBG(EUE)
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4 1/2 REG
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4 1/2 FH
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7“BCSG
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7“CSG
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NC38
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4 1/2 IF
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4 1/2 TBG (NU)
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4 1/2 UP TBG(EUE)
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5 1/2 REG
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5 1/2 FH
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7 5/8 BCSG
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7 5/8 CSG
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NC40
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5 1/2 IF
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6 5/8 REG
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6 5/8 FH
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8 5/8 BCSG
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8 5/8 CSG
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NC44
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7 5/8 REG
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9 5/8 BCSG
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9 5/8 CSG
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NC46
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8 5/8 REG
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10 3/4 BCSG
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10 3/4 CSG
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NC50
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11 3/4 BCSG
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11 3/4 CSG
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NC56
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13 3/8 BCSG
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13 3/8 CSG
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NC61
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16“BCSG
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16“CSG
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NC70
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18 5/8 BCSG
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18 5/8 CSG
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NC77
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20 BCSG
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20 CSG
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