Established in June 2007, Dongying H&H Manufacturing Co., Ltd. is a joint venture company of Highland Industrial Co., LTD. (China) and HTI Manufacturing Inc. (USA). Located in Shandong Dongying Economic Development District, the national biggest petroleum equipment manufacturing base, annual production capacity of our company is 10,000 tons.
H&H focus on precise cold rolled seamless pipes for petroleum equipment (pump barrels, plungers, couplings, pump shells and pump motor shells), air conditioning & refrigeration, heat exchangers, hydraulic props, propellers and motor shafts, hydraulic and pneumatic cylinders, roller conveyor drums, and textile and glass delivery equipment. Outside diameter (O.D.) range is between 13mm-220mm.
Our products follow API SPEC11AX-2001 standards and reach the IT5 degree of precision. Straightness and degree of finish can both satisfy the requirements.
Apart from precision barrels and pipe, we also in line of import and export on behalf of Highland group.
Your satisfaction is our objective, and we'll provide best service with honesty and credibility.
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