無氧銅即不含氧也不含任何脫氧劑殘留物的純銅,但實際上還是含有非常微量氧和一些雜質,按標準規定,氧的含量不大於0.003%,雜質總含量不大於0.05%,銅的純度大於99.95%。根據含氧量和
品牌:耀惠金屬 規格:齊全 產地:洛銅 材質:CA102 C103
品牌:迪林根 規格:齊全 產地: 材質:(T2-O60銅棒)T2M銅帶
銅板材 銅板是一種高穩定、低維護的屋面和幕牆材料,環保、使用安全、易於加工並極具抗腐蝕性。1)銅板的屈服強度和延伸率成反比,經加工折彎的銅板硬度增加
品牌: 規格: 產地: 材質:
Fatal error: Uncaught GuzzleHttp\Exception\ConnectException: cURL error 7: (see http://curl.haxx.se/libcurl/c/libcurl-errors.html) in /www/wwwroot/code/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php:185
Stack trace:
#0 /www/wwwroot/code/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php(149): GuzzleHttp\Handler\CurlFactory::createRejection(Object(GuzzleHttp\Handler\EasyHandle), Array)
#1 /www/wwwroot/code/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php(102): GuzzleHttp\Handler\CurlFactory::finishError(Object(GuzzleHttp\Handler\CurlHandler), Object(GuzzleHttp\Handler\EasyHandle), Object(GuzzleHttp\Handler\CurlFactory))
#2 /www/wwwroot/code/vendor/guzzlehttp/guzzle/src/Handler/CurlHandler.php(43): GuzzleHttp\Handler\CurlFactory::finish(Object(GuzzleHttp\Handler\CurlHandler), Object(GuzzleHttp\Handler\EasyHandle), Object(GuzzleHttp\Handler\CurlFactory))
#3 /www/wwwroot/code/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php(28): GuzzleHttp\Handler\CurlHandler->__invoke(Object(GuzzleHttp\Psr7\Request), Array)
#4 /ww in /www/wwwroot/code/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php on line 185