Lishenflex monga katswiri wonyamula ma slings opanga ndege ndi ogulitsa ku China, zonyamula ndege zonse zadutsa miyezo ya certification yamakampani apadziko lonse lapansi, ndipo mutha kukhala otsimikizika kwathunthu. Ngati simukupeza ma slings anu a Intent ndege pamndandanda wazogulitsa, mutha kulumikizana nafe, titha kupereka ntchito zosinthidwa makonda.