Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/4de3f197287fd965ddfd7fd585b6573d.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 gas and sand anchor例句_gas and sand anchor英汉例句_gas and sand anchor双解例句_沉淀汉英词典
The utility model is suitable for various oil and gas wells and water wells, and can directly do sand anchor operation under pumps. 本實用新型適用於各種油氣井和水井，可直接做泵下砂錨。 ip.com