求翻译：管子对口前，焊口表面及附近母材内外壁应无油、漆、垢、锈等，距离焊口每侧10mm-15mm范围内的管子内外壁应进行清理、打磨，直至发出金属光泽是什么意思？

Counterparts before the pipe, the weld surface and base metal near the inner and outer walls should be free of oil, paint, dirt, rust, etc., from the weld on each side of 10mm-15mm range of the tube inside and outside wall cleaning, polishing, until the issue of metallic luster

Before welding, tube counterparts and in the vicinity of port surface inside and outside wall material should be free of oil, paint, dirt, rust, and so on, each side port weld distance 10mm - 15mm range within and outside the tube wall should be cleaned up, grinding until a shiny metal

Pipe suitable front, in the crater surface and nearby parent metal the outer wall should not have the oil, the paint, filthily, the rust and so on, leans from the crater in the 10mm-15mm scope pipe the outer wall to be supposed every time to carry on the cleaning up, the polish, until sends out the

Pipe on front, welding materials near the surface and inner and outer walls shall be no oil, paint, dirt, rust, pipe welded joints on each side of the distance 10MM-15mm-wide internal and external walls should be cleaned, polished, until the issue of metal gloss

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