Of course you cannot contact openings because roller intine is rotating, and steam condensate drains and swivel joint is fixed not generated noise and damage to drainage pipes. 當然管口不能接觸內壁，因為輥筒是旋轉的，而冷凝水排水管和蒸汽旋轉接頭是固定不動(dòng)的，否則會(huì )產(chǎn)生噪音和損壞排水管。
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