An Injection molder looks at wall thickness differently than does the part designer. His concern, in addition to the strength of the part, is whether the mold will fill. All plastics families have ...

There is still a lack of mature researches on the stability mechanism, influencing factors and control technology of the gob-side filling wall, and systematic researches on the cracking forms and ...

Many years ago, when I was young and foolish, I decided to build an 80-foot-long terrace for fruit trees, and to edge it with a nice fieldstone retaining wall using stones I could find on my property ...