短語詞組短語spiral taper pipe 錐形螺盤管Quality Spiral steel pipe 標題spiral welded pipe mill 螺旋焊管機組SAW spiral weld pipe 螺旋埋弧焊管spiral welded pipe unit 螺旋焊管機組tapered spiral seed pipe 錐形螺旋導(dǎo)種管long spiral drilling pipe 長螺旋鉆管 返回 spiral pipe