Warning: file_put_contents(/www/wwwroot/ppbbbu/oiqp.com/cache/50c15a1edf8f575dc0272fbc331e66f4.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/oiqp.com/index.php on line 55 welding gutter例句_welding gutter英汉例句_welding gutter双解例句_奇葩剧汉英词典
This invention changes its 200 years history of limitation to roof gutter and drainpipe, due to its easy bending, cutting and welding property. 改变200年以来利用锌金属易于弯折、剪焊等加工特性而限于作为制造屋面天沟及排水管之用。