日日骚一区二区三区av,久热这里只有精品中文字幕,国产一级片中文字幕在线观看,中文字幕精品日韩精品免费,日韩精品国产一区二区三区久久

Automotive Gear

PRODUCT PARAMETERS:

The manufacturing materials and heat treatment process of the gear have a great impact on the bearing capacity and dimensional weight of the gear. Before the 1950s, Wuyi automobile gear used carbon steel, used alloy steel in the 1960s, and used surface hardened steel in the 1970s. According to the hardness, the tooth surface of the gear can be divided into two kinds: soft tooth surface and hard tooth surface.

The bearing capacity of the hard tooth surface gear of the gear is high, and it is quenched, surface quenched or carburized quenched after the gear is finely cut to improve the hardness. However, in the heat treatment, the gear will inevitably be deformed, so after the heat treatment, the gear must be ground, ground or fine cut to eliminate the error caused by deformation and improve the precision of the gear.

CONTACT US
ADD:Zhejiang Wuyi Cultural and Educational Tourism Industrial Park
Contact:Miss Xu
Mobile:0086-15267308517
Contact:Mr. Xu
Mobile:0086-13906795439
E-mail: Xushan0822@hotmail.com
洞口县| 白城市| 和龙市| 开原市| 长白| 合阳县| 石河子市| 大丰市| 财经| 城固县| 曲阳县| 绿春县| 宜城市| 阳泉市| 宕昌县| 丰都县| 西平县| 宣武区| 剑河县| 宜君县| 凤阳县| 正安县| 湖口县| 阳山县| 当涂县| 元阳县| 昌黎县| 忻州市| 韶关市| 个旧市| 东明县| 福贡县| 玛沁县| 泾源县| 花莲县| 通渭县| 阆中市| 郴州市| 黎川县| 阿拉善右旗| 高邮市|