Ningbo Donglian Mechanical Seal Co.,Ltd. held an annual Wrap-up ceremony 2019 and the sales values increased by 10%. Our mechanical seals and mechanical seal faces or rings are sold all over the world and we are expecting more clients to co-operate with us in mechanical seals, mechanical seal faces or rings,ssic and boron carbide bullet-proof plates and so on.General manager has summarized 2019 and made a new plan for 2020.
