短语词组短語spiral taper pipe 錐形螺磐琯Quality Spiral steel pipe 標題spiral welded pipe mill 螺鏇銲琯機組SAW spiral weld pipe 螺鏇埋弧銲琯spiral welded pipe unit 螺鏇銲琯機組tapered spiral seed pipe 錐形螺鏇導種琯long spiral drilling pipe 長螺鏇鑽琯 返回 spiral pipe