
JAMA is a famous cast iron pulley manufacturer in China. We have a significant international influence. According to the material, JAMA's products are divided into several categories, and oil seal is one of them. JAMAcast iron pulley is produced with the help of many advanced shoemaking technologies including CAD pattern making, CAM, as well as digital molding technique. Unlike incandescent bulbs, which release 90% of their energy as heat, the product uses energy far more efficiently with little wasted heat.

Our sustainability strategy has been shared across departments. All our members are focusing on improving the way we manufacture and design our products to help reduce our impact on the environment.

