Handan Chang Lan Fastener Manufacturing Co., Ltd yahoze ari uruganda rwihuta rwa Yongnian Tiexi Changhe yari uruganda runini rukora imashini yihuta mu karere ka Yongnian. Isosiyete iherereye mu kigo gisanzwe cyo gukwirakwiza byihuta cya Hebei Yongnian, gifite ubuso bwa metero kare 3050, cyari hafi y’icyambu cya Tianjin n’ibyambu bya Qingdao, ibyoherezwa mu mahanga byemewe. 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;