Seven exemption groups have been approved for the use of lead in certain applications under EU RoHS Annex III for a few more years. In the past, Copper alloys products lead up to 0.4% by weight. But after the exemption deadline July 21 2021, Lead (Pb) tolerance will 

Despite of the Coronavirus outbreak happening in the Asian-Pacific region, Taiwan has not been under the influence of the Coronavirus outbreak. As an isolated island apart from China where the virus is now prevailing the most, Taiwan has one of the best healthcare systems in the world and remain

  Sectional symbol Cross section refers to showing off the surface of the object,Such as a circular cross-section of the sphere,Also known as cross-sectional, cut or section. In mechanical drawing, In order for a side cross-sectional view of the internal mechanical parts have a good unde

    Deburring (deburring) process Deburring deburring definition, It's to remove the workpiece machined thorn or burr was formed around the site. The most commonly used method deburring  this little thing was not much, but it is a direct impact on the quality of the product. So