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Mitsipa yeshiri inoonekwa seimwe yenzira dzinoshanda zvikuru dzekudzivirira shiri dziripo panjiva, shiri dzegungwa, makunguo, neshiri dzakafanana nedzadzo.

Hebei JinShi Industrial Metal Co., Ltd. ikambani inogadzira uye inotengesa zvigadzirwa zvesimbi, iri mudunhu reHeBei, China. Yakavambwa nemuzvinabhizinesi Tracy Guo muna 2008. Takatarisana ne "Dziviriro yezvakatipoteredza" uye "Bata mhuka zvakanaka, raramai murunyararo!". Takatsaurira kuR&D yezvigadzirwa zvekudzora shiri. Zvikuru zvinosanganisirasimbi isina ngura inopinza shiri pachigadziko chePC,100% simbi isina ngura shiri dzakapinzauyeMitsipa yeshiri ine polycarbonate 100%, nezvimwewo.