亚洲综合熟女av_亚洲国语自产一区二区_花季传播媒体v3.0.3.2旧版_国产精品资源在线观看_自慰中文字幕日韩中文字幕_欧美日本亚洲成人_欧美一级操逼_自拍男人下插进入女人下部视频_中文字幕三级免费片_国产精品免费AV

NewsTrue, forward, transfer value

Current position：主頁 > Index > News >

Precision casting industry characteristics

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 商橋咨詢

Current status of precision casting industry in China

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 商橋咨詢

  • 共 1頁2條記錄