Inquiry (采购产品): 2 balls vs 3 balls Synder column Hi, I wonder when to use micro Snyder vs. marco Snyder, and when to use 2-Ball Synder column vs. 3-ball. Thanks for your help. **** Hidden Message ***** Ada Wong V5L 1K5 CAN Company: ALS Environmental E-mail: ada.wong@alsenviro.com **** Hidden Message ***** ada.wong@alsenviro.com
