- 
				           		
首先,石英砂和合成树脂在螺旋给料器中混合,再由螺旋给料器挤出落进兜砂布中。
						        					            	
				            	In the program, sand and synthetic resin are mixed in the spiral feeder and extrude out to the cloth.
								    										 
								    				            	
				 	    						                 	youdao
				            					            						        	 
		         		 		        			         		
		          					          
		          			                            				          						          				          							        	- 
				           		
首先,石英砂和合成树脂在螺旋给料器中混合,再由螺旋给料器挤出落进兜砂布中。
						        					            	
				            	In the program, sand and synthetic resin are mixed in the spiral feeder and extrude out to the cloth.
								    										 
								    				            	
				 	    						                 	youdao