There are two types of detection methods common thread: integrated testing and individual testing. Comprehensive testing is the amount of regulation impact on the consolidated results of the interchangeability of the thread geometry deviation for testing. These include: the use of ordinary thread gauge and gauge only measured separately role in the thread diameter (including bottom diameter) in diameter and a single inspection; using smooth limit gauge to test the measured aperture. Thread gauge the scale of the proposed test threaded through the largest entity tooth type, test measured the diameter of the threaded role in diameter does not exceed its maximum tooth type of entity, and also examine whether the actual size of the bottom diameter exceeds its maximum physical size. Inspection method: If the measured thread and thread can pass through the rotary joint regulation, and regulation ended with the incomplete thread screwed by (thread gauge ended with the test only allows two threads screwed, screwed amount of no more than two pitches) , to show that the role of the measured diameter of the thread of the entity does not exceed the maximum diameter of the tooth type and a single in diameter does not exceed the diameter of the smallest entity of its type in the tooth, it can be guaranteed and screwed connection strength, then tested pitch diameter qualified. Otherwise unqualified. The Company's leverage years of design and production experience, optimize the product mix, and strive to variety, quality Stable. Enterprise autonomy has improved detection capabilities, based on user requirements and design drainage, HVAC special structural aspects of various products. My company has a strong productivity and competitiveness of the industry, the factory has a threaded plug manufacturing department, manufacturing department threaded ring, smooth plug Manufacturing Manufacturing smooth ring, thread gauges manufacturing department. Our products are widely used in the oil, chemical, coal, power plants, research, shipbuilding, environmental protection, construction, machinery, metallurgy, fertilizer, paper, energy, biomedical, refrigeration, food, beverage, pharmaceutical, hospital, precision electronics, fine chemicals, electricity, painting surface cleaning and other areas and other industries. 

keywords: Threaded plug, threaded ring, smooth plug, smooth ring gauge, thread gauge,