1·These iron pipes were decomposed.
这些铁管子被腐蚀了。
2·He welded two iron pipes together.
他把两根铁管焊接在一起。
3·The rain water bites in iron pipes.
雨水腐蚀铁管子。
4·There are even using the iron pipes.
甚至有的使用铁管。
5·The rain water bites into iron pipes.
雨水腐蚀铁管子。
6·The electric heating bed is made of metal pipes (such as iron pipes).
用金属管做的（如铁管）叫做电热床或炕（地炕）。
7·The stability of gas pressure is crucial to assure the quality of ductile cast iron pipes.
煤气压力的稳定性是保证球墨铸管退火质量的关键。
8·The CB wash can be used to produce as-cast centrifugal ductile iron pipes by heated mold method.
并可用于热模法铸态离心球铁管的生产。
9·If the chemicals can eat through the iron pipes, how come they can't eat through the toothpaste tube?
如果这些化学物质可以腐蚀铁管，那他们怎么可能没有腐蚀调这个牙膏管？
10·Graphite cast iron pipes and steel pipes are used for the water supply and distribution pipe network.
输配水管网采用了球墨铸铁管和钢管。