Zopangira ma grooved, zomwe zimadziwikanso kuti grooved pipe fittings kapena grooved couplings, ndi mtundu wa zolumikizira mapaipi amakina omwe adapangidwa kuti azitha kulumikiza mapaipi, ma valve, ndi zida zina motetezeka pamagwiritsidwe osiyanasiyana. Zomangamanga zomwe zimagwiritsidwa ntchito nthawi zambiri pamapaipi amalonda ...
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