Chithunzi cha HEBEI HEX IMP.&EXP.COMPANY ndi kampani yomwe imayang'ana kwambiri kutumiza zitsamba zosaphika, zitsamba zoyamba zokonzedwa, zopangira mbewu, tiyi wamaluwa, tiyi wazitsamba, zowonjezera zanyama, zowonjezera zaumoyo zachilengedwe.Mankhwala achilengedwe akhala akugwiritsidwa ntchito ngati chithandizo chamankhwala padziko lonse lapansi kwazaka zambiri.Zitsambazi zimachokera ku mitengo, maluwa ndi zomera zomwe zimapezeka kuthengo ndipo zakhala zikulimidwa kuti zichiritse kwa zaka zambiri.