Disclosed is a universal drawing instrument for pipe elbow, which is a tool for making steel pipe elbow during the maintenance and installment of pipes.
管道弯节万能画线仪是一种管道维修安装时制作钢管弯头的工具。
Disclosed is a universal drawing instrument for pipe elbow, which is a tool for making steel pipe elbow during the maintenance and installment of pipes.
管道弯节万能画线仪是一种管道维修安装时制作钢管弯头的工具。
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