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We are offering internal thread taper gauges, baoji thread gages co., ltd gauge specifications introduced
1, oil drill pipe joints gauge series api spec7-2-0068
1) digital connector series: nc16 --- nc77
2) within the flat connector series: 238if---658if
3) formal joint series: 112reg-858reg
4) intersecting eye connector series: 278fh-658 fh
5) intersecting eye connector series: 278fh-658 fh
6) h90 series: 31 h90-858h90
7) slh90 series: 238 slh90-312slh90
8) oh sw series: 278oh sw-412 oh sw
9) oh lw series: 4oh lw
10) pac series: 238pac-312 pac
11) sh series: 278sh-4sh
12) wo series: 238wo-312 wo
13) xh series: 278xh-312 xh
14) gost series: z161 - z189
oil casing, partial ladder gauge series api spec5b-0032
1) do not upset tubing series: 1.315tbg-412 tbg
2) external upset tubing series: 1.315uptbg-412up tbg
3) round thread casing series: 412csg-20csg
4) partial ladder casing series: 412bcsg-20bcsg
5) line pipe series: 112lp-20d lp.
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