Lishenflex joalo ka moetsi li-slings flat flat duplex naheng ea China, le morekisi oa likhoele tsohle tsa marang-rang tsa duplex li fetile litekanyetso tsa setifikeiti tsa indasteri ea machabeng, mme o ka netefatsoa ka botlalo ka boleng. Haeba u sa fumane li-slings tsa hau tsa Intent duplex flat webbing lethathamong la rona la lihlahisoa, u ka ikopanya le rona, re ka fana ka lits'ebeletso tse ikhethileng.