U Bend Tube
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ASTM A179 U Bend Heat Exchangers Tube
Ma hope o U piʻo (hana anu), pono paha ka mālama wela o ka ʻāpana pelu.mīkini hoʻohua nitrogen (no ka pale ʻana i ka ʻili o ka paipu kila kila i ka wā annealing).Hoʻomalu ʻia ka mahana ma o ka wahi wela wela e nā pyrometer infrared paʻa a paʻa.
