发明名称 Pipe fitting comprising at least two layers of different material, the innermost layer made of plastic
摘要 A pipe fitting for connecting at least two pipes, the pipe fitting (1) comprising at least two layers. An innermost layer (2) and an outer layer (3) are of different materials. The innermost layer (2), which gets into contact the liquid to be conveyed, is made of plastic tolerating high temperatures. The outer layer (3) is formed of such materials that the outer surface is arranged to function as the provider of oxygen diffusion protection and/or the UV protector.
申请公布号 US7469935(B2) 申请公布日期 2008.12.30
申请号 US20050501802 申请日期 2005.02.09
申请人 UPONOR INNOVATION AB 发明人 SMAHL JARMO
分类号 F16L33/00;F16L47/24 主分类号 F16L33/00
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