Hangzhou Rock Machinery Manufacture Co.Ltd. is an export-oriented company specializing in manufacturing full range of both Hand Winch and Electric Winch. Its winches have reached CE standard and passed EMC approval. Our factory has passed the assessment of Quality system Standard, ISO 9001:2000 and TS16949. As a specialized Winch manufacturer, it aims to make top quality winches for international market through cooperation with top quality companies in the field and to become a leading winch man