行業標準CJ/T321-2010【鋁合金襯塑復合管材與管件】、國家標準GB/T41494-2022【鋁合金襯塑復合管材與管件】均由航天凱撒公司起草、主編,技術標準值均來自“航天凱撒管”,因此,在市場上
品牌:航天凱撒 規格:dn20~dn315 產地:山西 材質:鋁合金襯PPR
鋁銅合金很堅硬,熔點是640℃,一般是由97%的鋁和3%的銅組成。跟金屬鋁的化學性質相似。輕而抗張強度大。可代替昂貴的銅線爲電線。中文名鋁銅合金 化學式CuAl熔點640℃
品牌:晶邁中科 規格:根據客戶規格定制 產地:北京 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