The semi-truck disc brake shaft has fast heat dissipation, open design, high carbon alloy brake disc, anti-cracking performance, fast general heat dissipation, and is not prone to thermal recession during frequent continuous braking. Compared with the tra
We Hebei Jianzhi Casting group are mainly producing the Malleable casting iron pipe fittings and grooved pipe fittings more than 40 year .As a professional manufacturer, We are always asked the different in both the Malleable iron socket and Carbon steel
Reading pen provides sound support so that kids can learn independently. it's simple, lightweight and funny, enables kids to learn wherever they go. Talking pen encourages kids to practice the language and build their confidence. it's the perfect