发布时间:2025-01-27 13:32:08
不锈钢管道夹需要垫四氟板。不锈钢管道夹垫四氟板可以减小摩擦。防止管线因热胀冷缩产生的横向应力使管子变形甚至破裂。四氟板分为模压板和车削板两种,模压板是由聚四氟乙烯树脂在常温下用模压法成型,再经烧结、冷却而制成。车削板由聚四氟乙烯树脂经压坯、烧结、旋切而成。
别墅的挑空用钢筋水泥浇灌后铺贴瓷砖装修6年后有多块砖翘起了是砖没贴好还是浇灌层应力变化所致
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