日韩有码一区二区在线播放|久草最新视频地址|日韩三级电影网站|在线成人AV在线网站播放网址|无码精品毛片亚洲成人小视频|特级黄色毛片欧美人操动物|99在线无码精品|乱伦图区一区亚洲av久|怡红院在线亚洲精品|免费一级大片怡春院AV

會員登錄
請登錄您的生意號，獲取電子名片。便于轉(zhuǎn)發(fā)分享！
取消
會員登錄
請登錄您的生意號，獲取電子名片。便于轉(zhuǎn)發(fā)分享！
取消
日韩一级黄片免费视频播放,日本A片一区无码av免费,自拍偷拍高清无码专区

Poly(trimethylene carbonate)

Shengjin technology

Poly(trimethylene carbonate)

【 English name】: Poly (trimethylene carbonate)
【 Chemical Name 】: Polytrimethylene carbonate (PTMC)
Molecular weight: 50000 to 200000
Usage: Can be used as a medical polymer absorbable material, high-end medical equipment, and medical consumables

Taobao
Alibaba
QQ
Top
Home

Home
News

News
About us

About us
Product

Product

Contact us