A lokacin bincikena na kayan aikin masana'antu da adaftar, na gamu da wani abu mai ban sha'awa: SAE da zaren NPT.Yi la'akari da su a matsayin taurarin bayan fage a cikin injin mu.Suna iya kama da kama da kallon farko, amma a zahiri sun bambanta sosai a yadda aka tsara su, yadda
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