久久操超级碰免费视频

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Lilin 3H series tricone bits。

High rate of penetration(ROP) and long life in running.
Optimized material and shape of tooth with efficient cutting ability to improve penetration rate.
High-efficiency hydraulic system and jettig system to provide power.
Enhanced gauge protection to provide anti-abrasion in complex formations.

Contact Us Lilin Machinery Group Co., Ltd.
Add:Fukang Road Gegu Jinnan,Tianjin,China.
P.C.:300352
[ Trade Department ] Tel.:86-22-58052996     E-mail:sale@lilingroup.com
[ Human Resource Department ] Tel.:86-22-28685828     E-mail:hr@lilingroup.com
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