The raw materials supply, production and application situations for aluminum plastics compound pipe are introduced.

介绍铝塑复合管的原材料供应现状、生产状况和推广应用情况；

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The raw materials supply, production and application situations for aluminum plastics compound pipe are introduced.

介绍铝塑复合管的原材料供应现状、生产状况和推广应用情况；

youdao