gated pipe造句怎么写
- 造句
- 关注:1.3W次
Helical-corrugated pipe can deliver more sediment with a given power input than either standard corrugated or plain pipe.
plastic corrugated pipe with double thin wall
This is a manufacturer specializing in manufacturing machines of producing soft metal pipe, corrugated pipe and stainless steel pipe.
smooth on inside PVC double wall corrugated pipe
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