How often does the letter "t" occur in:
High strength hanger bolt, are widely used in electric power, chemical industry, oil refining, valves, railways, Bridges, steel structure, automobile and motorcycle accessories, and other fields stud: commonly used in mining machinery, Bridges, cars, motorcycles, boiler steel structure, cranes, large-span steel structure and large buildings, etc.General double-head bolt is expressed as: M12×100 GB 901-88(standard) 35#/35#(material)8.8 class /8 class (modulation class)= 12 mm length = 100 mm diameter of GB 901-88 is the national standard (of course also can according to need to use the industry standard) stud standard: GB 900-1988 stud the introduction of stud save time and cost of all the stud structure without drilling, punching, threading, riveting, screw thread and finishing steps, such as expanding the potential applications of structural design, large current and low penetration.Therefore, it can be welded to very thin plates.Stud welding workpiece must be welded from one side.Can be welded in full position on a restricted vertical baffle with the aid of an expander.Due to short time of welding and little deformation after welding, there is no need to repair.

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The total number of "t"s in that passage is 84.
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