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这里所指的聚乙烯缠绕结构壁管材产品是指依据GB/T 19472.2—2004生产的管材,在附录C中列举的主要连接方式有:弹性密封件连接、焊接、热收缩套连接、法兰连接和电热熔带连接。前四种连接方式均只适用于开挖管连接,而电热熔带连接方式既适合于该产品所有规格型号的连接,又适合于
Here refers to the polyethylene winding structure wall pipe products are produced in accordance with GB / T 19472.2-2004 pipe, listed in Appendix C of the main connections are: flexible seal connection, welding, shrink sleeve connection, flange connection And electric melting zone connection. The first four connection methods are only applicable to the excavation pipe connection, and the electric fusion belt connection method is suitable for all the specifications of the product connection, but also for