Plant Plastic Shell Casings:
It's made by plant plastic, used for small fireworks shells. What's the most important, it can save lots of labor cost for factories, and it's biodegradable. 
Usage: First put powder into this casings, then put some gluewater into the small holes on the casings. You can fire the shell in about 2 hours at most.
Plant Plastic Shell Casings Specification
	
		
			| Size              | 
			Outer Size | 
			Packing | 
		
		
			| 1.5" | 
			33mm | 
			1200/1 | 
		
		
			| 1.75'' | 
			43mm | 
			1000/1 | 
		
		
			| 2" | 
			46mm | 
			800/1 | 
		
		
			| 2.5" | 
			57mm | 
			600/1 | 
		
		
			| 3" | 
			68mm | 
			500/1 | 
		
		
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