情侣激情18内射骚话国产,国产∨亚洲V天堂无码久久久,亚洲国产精品国语在线,久久午夜福利无码1000合集,国产精品18久久久久久麻辣,丰满多水的寡妇,国产MV在线天堂MV免费观看,国产熟女高潮视频,熟妇熟女乱妇乱女网站,欧美多人片高潮野外做片黑人

Products

no burning and high efficiency grinding wheel

01 無燒傷高效磨齒砂輪.jpg

No burning and high efficiency grinding wheel is a new type grinding wheel developed by forturetools according to gear grinding industry.

The grinding wheel is made of GDV low temperature binder,SG and hollow ball abrasive.

The grinding life is 5-8 times that of ordinary abrasive.


Last : 沒有上一篇 Next: worm grinding wheel

Bold Group

Forturetools

BYD Abrasives

Malaysia
ADD: No.10 Dongqing Street,
High&New tech Development Zone.
Zhengzhou, Henan, China.
Postal code: 450001 E-mail：liu@bold68.com
Phone: 0371-67662016 86162612
?Copyright 2004 Zhengzhou Bold Abrasives Co., Ltd. All Rights Reserved.
Leave Message
Name
Telephone
E-mail/QQ
Message