成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天
Beijing Xinwell Glass Instrument Co., Ltd??? ?? ??? ?????.
?? ?:
Beijing Xinwell Glass Instrument Co., Ltd
??:
???:
1042829409@qq.com
??:
CHINA
URL:
www.xinweier.com
? ?? ?:
1325
10
11
12
13
14
?? ????
Type B connector
Space-saving standard ground joint, 10/30-14/20
Clayson connector
Space-saving standard ground joint, 19/38-29/42
Space-saving standard ground joint, 10/30-24/40
Type A connector
Space-saving standard ground joint, 14/35-24/40
Kjeldahl joint
Space-saving standard ground joint, 10/18-14/20
T-type tee joint
Space-saving standard ground joint, 10/30-19/38
Y-joint
Connector & NBSP
Space-saving standard ground joint, 14/35-19/38
U&NBSP
Inverted "Y" connector
Tee joint
Space-saving standard ground joint, 10/30-14/35
Claisen joint (for oxygen and water-free)
Space-saving standard ground joint, 24/40-34/45
Space-saving standard ground joint, 14/20-19/22
U-joint
Space-saving standard ground joint, 19/38-24/40
Long neck input connector
O-ring, inner diameter × width, 6.0 × 2.62 8MM high vacuum top
10
11
12
13
14
Copyright 2019 ? ChemicalBook. All rights reserved