Shuanghuan Zhejiang Shuanghuan Driveline (浙江双环传动机械股份有限公司) is a company that manufactures gears and related components. | ![]() Tianrun Tianrun Industry Technology (天润工业技术股份有限公司, formerly known as Tianrun Crankshaft) is a company specializing in the production of internal combustion engine crankshafts and connecting rods. | |
Founding Date | Founding Date 1980 | Founding Date 1954 |
Type | Type Public | Type Public |
Tags | ||
Locations | Locations Hangzhou, CN HQ | Locations Weihai, CN HQ Wei Fang Shi, CN Weihai, CN Kelkheim (Taunus), DE |
Employees | Employees 8,333 | Employees 3,421 |
Valuation ($) | Valuation ($) 3.4 b | Valuation ($) 757.4 m |
Financial | ||
Revenue (est.) | Revenue (est.) ¥9b (FY, 2025) | Revenue (est.) ¥3.9b (FY, 2025) |
Cost of goods | Cost of goods ¥6.6b (FY, 2025) | Cost of goods ¥3.1b (FY, 2025) |
Gross profit | Gross profit ¥2.4b (FY, 2025) | Gross profit ¥889.4m (FY, 2025) |
Net income | Net income ¥1.3b (FY, 2025) | Net income ¥361.1m (FY, 2025) |

Tianrun Industry Technology (天润工业技术股份有限公司, formerly known as Tianrun Crankshaft) is a company specializing in the production of internal combustion engine crankshafts and connecting rods.
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