再次补充协议在补充协议原合同基础上，经双方协商取的一致后，增加两台脉冲

Again supplemental agreement <br>on the basis of the original contract supplemental agreement on, after mutual consultation to take consistent, adding two pulse dust collector equipment and accessories, change the contract amount of $ 223,507, with the supplementary agreement contract amount of $ 195,380 an increase of $ 28,127, <br>the customer has The deposit is 165663 US dollars, the customer pays another 28127 US dollars, the remaining balance is 29717 US dollars, one-time payment before delivery. <br><br>Date: June 6, 2020

Supplementary agreement again<br>On the basis of the original contract of the supplementary agreement, with the agreement of the parties, two pulse disformers and their accessory equipment were added, the contract amount was changed by $22,3507 and the contract amount of $195,380 was increased by $28,127,<br>The customer has paid a deposit of $165,663, the customer has paid $28,127, the balance is $29,717, and the advance payment is made in one lump sum.<br><br>Date: June 6, 2020

Supplementary agreement again<br>On the basis of the original contract of the supplementary agreement and after the agreement reached by both parties through consultation, two pulse dust collectors and their accessories are added, the contract amount is changed to 223507 USD, and the contract amount of the supplementary agreement is increased to 195380 USD by 28127 USD,<br>The customer has paid a deposit of US $165663, another US $28127 and the remaining US $29717, which shall be paid in one lump sum before delivery.<br>Date: June 6, 2020<br>