中文字幕一区伦理_被男人添全过程a片免费_中文字幕亚洲网站_日韩欧美动漫在线视频_波多野结衣一二三_國產粉嫩00福利福利福利_久久大香香蕉国产_亚洲精品宾馆在线精品酒店_国亚洲日韩国产欧美另类_日本三级大乳在线观看中文

<del id="kooi0"></del>

<tfoot id="kooi0"></tfoot>

NewsTrue, forward, transfer value

Current position：主頁(yè) > Index > News > Industry News >

Precision casting industry characteristics

Precision casting which is commonly used is the investment casting, also known as the lost wax casting: selection of suitable casting mould materials of (such as molten mould made of Paraffin); in the casting was repeated dip refractory coat...

MORE INFO → Industry News 2015-11-10 qq咨詢(xún) 商橋咨詢(xún)

Current status of precision casting industry in China

Casting is one of the main ways to obtain the mechanical products. It is an important basic technology in the machinery industry. It plays an important role in the national economy. The casting blank is then processed by numerical control la...

MORE INFO → Industry News 2015-11-10 qq咨詢(xún) 商橋咨詢(xún)

共 1頁(yè)2條記錄