G BSPP thread gauges supplier thread ring plug gauges ...
TW: +886- (0)3-5600560. The most common types of Whitworth thread are: BSPP (G) – British Standard Pipe Parallel. BSPT (R/Rp) – British Standard Tapered Pipe, for pipes and tapered thread. An appropriate sealing compound can be used in the thread to ensure a leakproof joint.
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