Mainly engaged in producing high quality castings and machining mechanical parts. ZZHT has experienced Technology centers to ensure its strong product development and machining capability. Castings are mainly used for Oil field, trains and engineering machinery. ZZHT is the global certified suppliers for SCHLUMBERGER, CAMERON, GE OIL& GAS, supplying high pressure valves and other spare parts, conform to API 6A, API 6D. Also global certified supplier for Wabtec, supplying high quality castings used for brake system and connection system in subway and passenger train. Supplying hammers and caps to USA Sivyer and Italy Danieli company. ZZHT also produce high temperature resistance castings as glass molds.