部分回转型阀门手动装置，该产品外形美观，是一种出口型90°回转型手动驱动装置，适用于蝶阀、球阀、旋塞阀等类型阀门。手轮采用钢带焊接，输出力矩大。

This product is a kind of export type 90° transition manual drive device, suitable for butterfly valve, ball valve, plug valve and other types of valves. The handwheel is welded with steel belt, with large output torque.