日韩成人在线免费,免费看A片人成视频免费播放,精品少妇人妻av免费久久洗澡,国产午夜亚洲精品,日韩欧美一二区,一道本人香蕉,亚洲∧V免费视频

Service phone:020-82253210
中文|EN
Return
Patent certificate
  • Invention patent certificate (a ABS retarded grade color masterbatch)
  • Invention patent certificate (a carrier free foaming masterbatch and its preparation method)
  • Patent for invention (a pretreatment pigment and its preparation method)
  • Invention patent certificate (halogen free flame retardant high gloss polypropylene and its preparation method)
  • Invention patent certificate (a high rigid and high flow PC, ABS alloy and its preparation method)
  • Invention patent certificate (a coloring masterbatch for polyester)
CONTACT US
contact us
Phone: 020-82253210, 82253219
Mailbox: [email protected]
Address: No. 7, Yun Qing Road, Luogang District, Guangzhou, Guangdong

Sweep
Pay attention to the WeChat public number

Copyright?2013 Guangdong Persian Polytron Technologies Inc, Guangdong ICP 13064142-1Powered by Vancheer
Click here to send me a message