Our product main material for high frequency steel pipe and PP import plastic product.
我们产品次要的资料为高频钢管和PP入口塑料产品。
The present invention relates to a steel-plastic composite pipe material for transmission of fluid.
本发明涉及一种输送流体的钢塑复合管路材料。
The present invention relates to a steel-plastic composite pipe material for transmission of fluid.
本发明涉及一种输送流体的钢塑复合管路材料。
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