Hi,
I have many coupons. If you want to buy some antminers from bitmain shop, contact me at:
roghi1024@gmail.com

The worth of coupons are: 450,420, 400, 250,220, 200, 150
I will send you with 40% off, so you can buy a 400$ miner with 240$ ..., if you are a bulky buyer.

 I have these coupons:
2 * 450   To 2018-06-10 23:59:00
2* 420   To 2018-06-30 18:24:00
2* 400   To 2018-06-30 18:23:00
1* 350   To 2018-06-30 18:22:00
2* 220    To 2018-06-10 23:59:00
33* 200   To 2018-06-01 18:13:00
1 *140   To 2018-08-31 18:27:00
17 * Coupon 125 USD  To 2018-06-30 13:38:00

For a person who just wants one or two coupons, the discount is at least 20%.

Thanks