Handan Chang Lan Fastener Manufacturing Co., Ltd. yahoze ari uruganda rwihuta rwa Yongnian Tiexi Changhe yari uruganda runini rusanzwe rwihuta mukarere ka Yongnian.Isosiyete iherereye mu kigo gisanzwe cyo gukwirakwiza Hebei Yongnian, gifite ubuso bwa metero kare 3050, cyari hafi y’icyambu cya Tianjin n’icyambu cya Qingdao, ibyoherezwa mu mahanga byemewe cyane.Isosiyete ifite imashini ikonje ikonje, moderi 12b, 14b, 16b, 24b, 30b, 33b;ifite imashini ishyushye, moderi ifite toni 200, toni 280, toni 500, toni 800;