Ring and Plug Gauges

Standard: API-5B
Product use: Materials & connections

This is a product category. Confirm models, specifications, availability and lead times with suppliers.

Related supplier profiles · 5

Supplier profiles are selected by certificate product scope and standard. Certificate records are marked Active by the source; confirm current certificate status, product suitability and supply capability before purchasing.

Baoji Oilfield Machinery Co., Ltd.

Baoji · Shaanxi Province · People's Republic of China

Ring and Plug Gauges

Certificate dates need review

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Baoji Thread Gages Co. Ltd.

Baoji City · Shaanxi Province · People's Republic of China

Ring and Plug Gauges

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Baoshan Iron & Steel Co., Ltd./Core Base Facility

Baoshan District · Shanghai · People's Republic of China

Ring and Plug Gauges; Casing & Tubing Threads

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Chengdu New Chengliang Tools Co., Ltd.

Chengdu · Sichuan · People's Republic of China

Ring and Plug Gauges

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Shaanxi Aviation Hongfeng Precision Mechanical Tools Co., Ltd.

HanZhong · ShaanXi · People's Republic of China

Ring and Plug Gauges

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Product use and sources

Castings, forgings and fasteners form the physical foundation of reliable equipment.

Standard description (API source text):

Threading, Gauging and Thread Inspection of Casing, Tubing and Line Pipe Threads

Names and standard mappings come from the API Composite List search snapshot. Product-use groups and Chinese reading aids are OFMP editorial additions, not official API classifications or translations; original English names are retained for comparison. Category snapshot: 2026-10-10

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