- description
 - parameters
 
| 
					 Model  | 
				
					 PH101  | 
				
					 PH102  | 
				
					 PH103  | 
				
					 PH104  | 
				
					 PH105  | 
			
| 
					 L(mm)  | 
				
					 25  | 
				
					 50  | 
				
					 75  | 
				
					 100  | 
				
					 150  | 
			
| 
					 Weight(kg)  | 
				
					 0.03  | 
				
					 0.05  | 
				
					 0.08  | 
				
					 0.1  | 
				
					 0.15  | 
			
	








