plain end meaning in English

管材的平滑端
平管口
平口

Unit heads . multi spindle heads . simple plain end drilling spindles
组合机床动力头.多轴头.简单的普通端钻床主轴
Standard specification for steel line pipe , black , plain end , laser beam welded
激光束焊平头无镀层钢制总管的标准规范
Iso plain end welded precision steel tubes - technical conditions for delivery iso specifications
光端焊接精密钢管.交货技术条件
Iso plain end seamless precision steel tubes - technical conditions for delivery iso specifications
光端无缝精密钢管.交货技术条件
Plain end steel pipe
平端钢管

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