How to Choose a Phono Cartridge. Listening to music recordings on vinyl records has been popular since the 1950s, while similar shellac records date to the early twentieth century. Vinyl remains popular even today in both the hi-fidelity...
Baby Thresholds. Baby Threshold or âend mouldingâ is typically used at the exterior of doorways as a transition between flooring and the doorway threshold. It can also be used as a transition from a wood floor to a different flooring surface when the reducer wonât do. Our standard Baby Threshold or âend-mouldingâ dimensions are as follow:
Gravity Casting (a.k.a. Permanent Mold Casting). Gravity casting (called Permanent Mold Casting in USA and Canada) is useful when dealing with aluminum and other light alloys. It can serve for parts with undercut by sand-core to meet the feature needs. The metal is introduced into the mold by the force of gravity so the constraint is the wall thickness, the minimum of which is 3.5mm. The mold is usually made of steel and sand (with resin core). The casted material is usually aluminum.