国产性一交一乱一视频,18+女同,亚洲午夜未满十八勿入网站2,国产黄色毛片视频区,84pao国产成人免费永久视频,最近国产免费看黄片,中文字幕日韩一级

Products

Static Pressure Sedimentation Groove & Screw Grinding Wheels

Application:Static pressure sedimentation groove grinding wheels are produced with innovative manufacturing method different from traditional bearing grinding wheels. Our groove grinding wheels are as good as the same kind of international well-knowned wheels, with the features of high grinding efficiency, and high processing precision. Widely used for processing various of bearing grooves. Static pressure sedimentation screw grinding wheels are used in grinding screw drills, blades and screw rods, etc.. High grinding efficiency, and high precision. Especially, the wheels special to 9SiCr and Cr12MoV workpieces, are optimized by us.


Bold Group

Forturetools

BYD Abrasives

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