Cheap And Discounts Brand New Original NBB2-12GM50-E2 NBB2-12GM50-EO NBN4-12GM50-E2 NBN4-12GM50-EO NBB5-18GM50-E2 NBB5-18GM50-EO NBN8-18GM50-EO Wholesale. Buy Directly From Merchant Longway Automation Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.