He mea koʻikoʻi ka pahu Square no ke kūkulu honua a me ka hana hou ʻana, me ka nui o nā noi a me nā ʻano like ʻole.Wahi a nā ʻano cross-sectional ʻokoʻa, ua māhele ʻia nā paipu square i ʻehā mau ʻāpana: profiles, plates, pipes, and meta...
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