Main product: Tongyi engine oil, Zhengyang crankshaft, Zhenghe chain, Nanping piston ring, Mingyang connecting rod piston ring, Rushan Gaogui aluminum piston ring, Haijiu battery, Green battery.
主营：统一机油、罡阳曲轴、征和链条、南平活塞环、明扬连杆活塞环、乳山高硅名铝活塞、海久电池、格林电池。
Main product: Tongyi engine oil, Zhengyang crankshaft, Zhenghe chain, Nanping piston ring, Mingyang connecting rod piston ring, Rushan Gaogui aluminum piston ring, Haijiu battery, Green battery.
主营：统一机油、罡阳曲轴、征和链条、南平活塞环、明扬连杆活塞环、乳山高硅名铝活塞、海久电池、格林电池。
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