Warning: file_put_contents(/www/wwwroot/zidian/02956.cn/cache/7acd9021cd48aaff756c3311d4e72072.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/02956.cn/index.php on line 58 boiler plug例句_boiler plug英汉例句_boiler plug双解例句_花灯集英语字典
The Mo alloy inlaid piercing plug is especially suitable for piercing of low alloy pipes and high pressure boiler pipes. 镶嵌式钼合金穿孔顶头尤其适用于低合金钢及合金高压锅炉管的穿孔。