回复sunnyyang177发表于:2020/8/12 15:00:49悬赏金额:
15积分 状态:
未解决
第一个是D202阴离子树脂,第二个是201凝胶型阴离子树脂
[img=,690,333]https://ng1.17img.cn/bbsfiles/images/2019/08/201908121500424381_4714_1823055_3.jpg!w690x333.jpg[/img][img=,690,367]https://ng1.17img.cn/bbsfiles/images/2019/08/201908121500422071_6690_1823055_3.jpg!w690x367.jpg[/img]