Thread gauges.Plug gauges/Ring gauges.Go and Nogo.
Thread Plug Gages - UNC, UNF & UNEF Class 2B - 3B, Taperlock & Reversible, + Metric Sizes - Class 6H.
Thread Ring Gages - UNC, UNF & UNEF Class 2A - 3A + Metric Sizes - Class 6g.
Truncated Thread Setting Plug Gages Class 2A - 3A + Metric Sizes - Class 6g.
Thread Plug Gages - STI Screw Thread Insert.
BSP Plug Gages (BSPT, BSPP).
Taper Pipe Gages - Plugs & Rings.
NPT-L1, L1 & L2 Rings,
NPTF L1 & L3 Plugs,
NPTF Crest Check Plugs & Rings. https://t.cn/8skR3oy

Thread Plug Gages - UNC, UNF & UNEF Class 2B - 3B, Taperlock & Reversible, + Metric Sizes - Class 6H.
Thread Ring Gages - UNC, UNF & UNEF Class 2A - 3A + Metric Sizes - Class 6g.
Truncated Thread Setting Plug Gages Class 2A - 3A + Metric Sizes - Class 6g.
Thread Plug Gages - STI Screw Thread Insert.
BSP Plug Gages (BSPT, BSPP).
Taper Pipe Gages - Plugs & Rings.
NPT-L1, L1 & L2 Rings,
NPTF L1 & L3 Plugs,
NPTF Crest Check Plugs & Rings.

【在法留学仅看上去很美 蜗居、打工、留级成常态】——据法国《欧洲时报》消息称，法国公立大学注册费用低，但学生的生活费用--尤其是房租和交通价格高昂。学生联合会UNEF日前出炉一份调查报告，指出法国高校求学成本连年增加。学生们在经济压力下不得不打工，只有一半本科生可以按期毕业。详情点击：https://t.cn/Rtnfg6r