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三种PP管材中，管材抗冲击性能PP-Rgt;PP-Bgt;PP-H，管材热变形温度PP-Hgt;PP-Bgt;PP-R，管材刚 性PP-Hgt;PP-Bgt;PP-R，管材常温温度PP-Hgt;PP-B和PP-R，管材耐化学腐蚀性PP-Hgt;PP-B和PP- R。
Among the three kinds of PP pipes，ppr热熔管件价格， the impact resistance PP-R gt; PP-B gt; pp-h， the thermal deformation temperature pp-h gt; PP-B gt; PP-R， the rigidity pp-h gt; PP-B gt; PP-R， the normal temperature pp-h gt; PP-B and PP-R， and the chemical corrosion resistance pp-h gt; PP-B and pp-r.
目前，法兰连接中大的问题主要是法兰本身不合格和法兰连接不合格。
现在市场上销售的一些法兰存在的质量问题有：
①法兰的钢材不合格，耐压强度较低，在使用若干个月或若干个年后，出现渗水。
②法兰的螺栓孔外缘距法兰的边缘太小，小于5mm，在螺栓紧固时，易使法兰边缘。
At present， the major problems in flange connection are the unqualified flange itself and the flange connection is unqualified.
Some of the quality problems of the flange sold in the market are as follows:
① The flange steel is unqualified and the pressure resistance is low. After several months or years of use，ppr热熔管件厂家， water seepage occurs.
② The outer edge of bolt hole of flange is too small from the flange edge， less than 5mm. When the bolts are tightened， it is easy to make the flange edge.
PPR管道是每个家庭装修中都要用到的水管材料，如今的建材市场上，PPR管道品种繁多，品牌万千，竞争激烈。其中不乏有一些PPR管道以低劣的品质冲击市场，随州ppr热熔管件，以次充好，消费者从表面又无法辨别。Uk Gafloon Pipe Group Ltd，ppr管件热熔，专注生产PPR管、PVC管。
PPR pipeline is the water pipe material used in every family decoration. Nowadays， in the building materials market， PPR pipeline has a wide variety， brand and fierce competition. There are many PPR pipes that impact the market with inferior quality， and the customers can not distinguish from the surface.Uk Gafloon Pipe Group Ltd.Focus on the production of PPR pipe， PVC pipe.
