
 
液体达因笔  美国产
The CON-TROL-CURE® Liquid Dyne Pen's spring-valve tip design keeps the pen's 
applicator away from the dyne fluid storage to prevent contamination. Press the tip
 firmly down to open the valve and flood the tip with fresh fluid. Available in sets of 
8 pens from 30 to 44 dynes/cm (30, 32, 34, 36, 38, 40, 42, 44) and from 46 to 60 
dynes/cm (46, 48, 50, 52, 54, 56, 58, 60); also available by special order at any 
level from 30-70 dynes/cm.