Analysis was made of several factors leading to occurrence of decomposition in production of PVC-U double-wallcorrugatedpipe and some manufacture experience was introduced.
分析了影响PV C - U双壁波纹管生产中出现焦料问题的几种因素,并介绍了一些生产经验。
2
FRYS series heat-shrinkable sleeve products are designed for connection and sealing of ports of double-wallcorrugatedpipe for water discharge and supply of municipal engineering.
热缩系列产品,是为市政工程排水、给水用双壁波纹管端口连接密封而设计的。
3
This thesis points out the structure principal and project ideas of the production quality control system of PVC-U double-wallcorrugatedpipe, which is based on computer technology.