https://www.bonlycasting.com/uploads/表面处理视屏.mp4
Clay molds were used in ancient China since the Shang Dynasty (c. 1600 to 1046 BC). The famous Houmuwu ding (c. 1300 BC) was made using clay m...
https://www.bonlycasting.com/uploads/视频4.mp4
Cast iron is a group of iron-carbon alloys with a carbon content greater than 2%. Its usefulness derives from its relatively...
https://www.bonlycasting.com/uploads/视频3.mp4
Ductile iron is a high-strength cast iron material developed in the 1950s. Its comprehensive properties are close to that of steel. Based on its exce...
https://www.bonlycasting.com/uploads/视频2.mp4
Valve Industry Standard Code Summar
China Valve Standard Code
GB
National standard
JC
National Building Material Administration Standar...
https://www.bonlycasting.com/uploads/22.mp4
Lost foam casting is a process that belongs to precision casting, also known as gasification casting, solid casting, and cavityless casting. The dimensio...
https://www.bonlycasting.com/uploads/b32774aab8a012c7db26ff88d108dcc5.mp4
Valve industry standard code summary
China Valve standard code
GB
National standard
JC
National Bui...
18 Jun,20
13 Jun,20
03 Jun,20
27 May,20
27 May,20
22 May,20
