It focuses on the manufacture process and application properties to analyze the advantage and disadvantage of coating plastic pipe and lining plastic pipe.
着重从制造工艺和使用性能方面分析了涂塑钢管和衬塑钢管各自的优、缺点。
It introduces the structure, performance, material, appliance scope and implementing standard of lining plastic to supplying water pipe and fittings.
介绍了衬塑给水管件的结构、性能、材质、应用范围和执行标准。
A plurality of side barbs are distributed around the central main barb, with every fishing line on every side barb threading a plastic branch pipe of an inside lining steel wire.
在中心主钓周边分布有若干旁钩，旁钩上的鱼线穿套在内衬钢丝的塑料支管 内，塑料支管的中部通过连接件固接在基座的下部；
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