Below is a list of Hard Cases manufacturers from Covina, California. Hard cases are durable cases that are used to store and transport sensitive or important items. Hard cases are heavy-duty protective containers made of rigid material for transit and shipping applications. They are crush-proof, usually waterproof and can be flame resistant, static free and humidity-regulated. They have the important role of protecting their contents from shock, vibration, moisture, dust and other potentially damaging factors.