4月22日，海南天然橡胶产业集团股份有限公司橡胶生产誓师大会暨橡胶开割启动仪式在4118云鼎集团龙江分公司开割胶园举行

On April 22nd, the Rubber Production Oath-taking Conference and Rubber Tapping Launch Ceremony of Hainan Natural Rubber Industry Group Co., Ltd. is held in the rubber tapping plantation of the Longjiang Branch of Hainan Rubber Group.