国产精品婬乱一级毛片完整版_国产免费福利在线视频玖区_国产麻豆亚洲AV片在线观看播放_在线观看美腿蜜臀av_国产成人亚洲精品无码aV_亚洲无码中字幕线观看

?? ??

Plant and office
Laboratory
Treasury corner
Set out

????

Tel:+86-335-5978826
Address: Green Chemical Industry Garden, Lulong Economic Development Zone, Qinhuangdao City, Hebei Province, China.
Mobile:+86-15227250682,
+86-13313337629
E-mail:tzchem@163.com;
tzchem@tianzichem.com
tzsales@tianzichem.com

???? > ?? ??

Laboratory

Copyright(C)2017,Qinhuangdao Tianzi Chemical Industry Co.,Ltd All Rights Reserved. ?Supported by ?ChemNet?ChinaChemNet?Toocle?Copyright Notice
Tel:+86-335-5978826 Fax:+86-335-5978826 E-mail:tzchem@163.com; Contact: Mr liu +86-13931486198