1020 umuyoboro usanzwe wicyuma 20 # umuyoboro wicyuma udafite kashe
Ibisobanuro bigufi:
Umuyoboro usanzwe wumunyamerika ni igice cyambaye ubusa, ntaho uhurira nicyuma kirekire.
ASTM A 53 GR.Umuyoboro usanzwe.B ibyuma bidafite icyuma kugirango bikoreshwe muri rusange, ASTM A106 / A53 G. B yacometse ibyuma byuma byuma, BS 1387-1985 santimetero erw yumurongo mwinshi wasuditswe hamwe nigituba cya galvanised, ASTM A333-40 ° c-101 ° c ubushyuhe buke butagira kashe., ASTM ibyuma 179 bidafite ibyuma byo guhanahana ubushyuhe hamwe na kondenseri.Uburebure bwa Steel Tube: 5.8 M, 6 M, na metero 12, nanone ukurikije ibyo abakoresha bakeneye.Diameter yo hanze yibicuruzwa ni 1/2 ′ ′ - 28 ′ ′, 21.3-711.2 mm, uburebure bwurukuta SCH30, SCH40, STD, XS, SCH80, Sch160, XXS nibindi.Umuyoboro udafite icyerekezo ukurikije ibisabwa urashobora kuba umuti wo kurwanya ruswa, impande zombi hamwe na capitike ya pulasitike, urashobora gutondekwa ukurikije ibisabwa, kandi ushobora kugenzura ibicuruzwa.
