代谢物慨况
1、作钢管布线管路毗连之用，毗连同规格的内罗纹件
2、接纳优良碳素钢制成；
3、外表冷镀锌，具备杰出的防侵蚀机能。
1、 Made of high quality carbon steel;
2、 Surface cold galvanizing, with good corrosion resistance.
手艺参数
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