色色综合网66,一级a卡片在线观看,成人免费a视频,中文无码电影,国产AV一区二区三区

  • Hebei Xiangyuan Machinery manufacturing Co.,LTD!

Hot key words:Brake drum   Hub   Brake pads

news information

CONTACT:

Manager Lv:0086-13831914368
Manager Li:0086-15131910018
Post Code:055350
Tel:0086-319-6505298
Fax:0086-319-6505298
E-mail:lyxyqp@aliyun.com

ADDRESS:

Company Add:Workshop 6, Xingye Road, Economic Development Zone, Longyao County,Xingtai City,Hebei Province

News

Current Location:Index >> News >> News

What is the difference between perforated and unperforated brake disc?

TIME:2021.04.07

There are two main kinds of brake disc, one is a physical brake disc, in fact, is a five-hole brake disc, and there is a ventilation disc, this is a hole in the brake disc, so what are the differences between the two kinds of holes and no holes?

1. Holed brake disc. This ventilation brake disc because of the existence of holes, first of all in the manufacturing will be relatively complex, and the hole is bound to reduce the rigidity of the whole plate to a certain extent, so in the use of materials will be more demanding, so the price is higher, the cost of replacement will be higher. But in use, the ventilation disc can improve the cooling performance of the brake disc, reduce its thermal attenuation degree, and provide better braking ability.

2. Undrilled brake disc. This kind of solid brake disc is usually simple in structure. It is a solid brake disc in the overall form, so it is relatively simple in manufacture, so the cost is relatively low, and it is relatively cheap at the time of purchase. And the solid disc is more solid in structure, better rigidity and not easy to break.

久久网欧美| 欧美A片大香蕉| 亚洲色約約| A片网站免费| 日韩VA成人电影| 大香蕉久热| 黄色片,AV片| 黄色日本A片网站| av韩国一级| 五月天性爰乱| 日韩AV无码一区二区| 小香蕉AV| 白冰毛片一区二区三区| 欧美成人在线免费看片| 国产av熟女| 啊啊啊片免费看| 国产黄A片| 亚洲人人射| 日韩AV永久在线| 日韩一级片免费看| 91看免费看NB大片| 三级性爱视频| 水多多成人一区二区| 日韩AV美女| 超碰av在线观看| 东京热黄色片| 国模在线直播| AV在线1| 日韩AV操| 欧美操孕妇| 97色情电影| www.av小日本| 2024欧美性爱| 超级黄 色a毛片视频| 日韩特级AV| 久久AV电影| 日韩AV无码免费播放| 日韩性爱A片| 欧美熟女黄色网络| 国产AV有码| 成人AAA毛片|