... Associated Factory. We are specializing in producing different kinds of manual slack adjuster,air dryer,spring brake chamber,clutch booster,spring ... free to contact us at any time. Product details: Name : manual slack adjuster Tooth system (spline) : 10•(Size:1 1/2 ... heavy duty trucks,trailers and semi-trailers Anyone will can test the product before delivery.our factory could provide samples.As ...