Yantai DNG Warshadaha culus ee Co., Ltd. DNG waxay leedahay khibrad farsamo oo xoog leh iyo wax soo saarka hodanka ah, kaas oo ku takhasusay soo saarista hammers-ka kala duwan oo ka mid ah hammers, sida ceyriska, madaxa, duurka hore, birta hore, birta, iyo badeecadaha kale ee taageera. DNG waxay leedahay taariikh ka badan 10 sano, iyo warshadda gudbinta ISO9001, ISO14001 Shahaadada iyo shahaadada EU CE.