VA Main features Excellent color change function; Smooth gate mark; Apply to the sequence time control system, injected product meets the customer demand; Unique design of structure; Be able to inject the engineering plastic with glass-fiber fillings, which makes the gate a good appearance; Valve needle is made of special material, its surface is processed by wear-resistant coating, thus it is durable in use; Four nozzle series are available to process shot weights ranging from <20g up to 8000g.