Laizhou Dongsheng Valve Co., Ltd. shine masana'antar bawul mai sana'a, tarin bincike ne da haɓakawa, ƙira, ƙira, siyar da ƙwararrun kamfani na musamman tun 2002. Muna riƙe tsarin tsarin kimiyya da tsattsauran ra'ayi, ƙarfin fasaha mai ƙarfi. , ci-gaba kayan aiki da m fasaha ci gaba, high fasaha da ingancin fasaha da ma'aikata.Our factory yanki ne 30,000 murabba'in mita da kuma 148 ma'aikata.Bayan shekaru 20 na mayar da hankali, mun ci gaba a cikin duniya-sanannen rajistan shiga samar tushe, kuma mu kayayyakin da ake fitarwa zuwa Turai, Amurka, Afirka, kudu maso gabashin Asia, Australia da sauran fiye da 70 kasashe da yankuna.