ʻO Handan Chang Lan Fastener Manufacturing Co., Ltd. ʻo Yongnian Tiexi Changhe fastener factory ka mea hana maʻamau maʻamau ma Yongnian District.Aia ka hui ma ke kikowaena kikowaena paʻa paʻa maʻamau o Hebei Yongnian, e uhi ana i kahi ʻāpana o 3,050 square square, kokoke i ke awa ʻo Tianjin a me Qingdao awa, ua maopopo loa ka lawe ʻana.Loaʻa i ka hui ka mīkini poʻomanaʻo anuanu kūlana he nui, ke kumu hoʻohālike 12b, 14b, 16b, 24b, 30b, 33b;Loaʻa ka mīkini hoʻoheheʻe wela, he 200 tons, 280 tons, 500 tons, 800 tons;