COB is Chips on Board, It is a technology to solve the problem of LED heat dissipation. Compare with SMD, it characterized by saving space, simplifying packaging operations, also has an efficient thermal management way.
A material that combines firmness and lightness ,PVC boards are cheap, lightweight, easy to transport,it become more and more popular in construction field.
During drying,the fabrics are being supported by the net belts all the time,upper and lower nozzles are blowering,the fabrics are moving in wave form,after several times vibrating and beating,the moisture will be evaporated,and the fabrics are dried gradu
Portable line boring and welding machine is an on-site portable machining/welding machine , repair bores which have been worn out, oversized or irregular shaped.It combine line boring and welding two function into one machine .Against modular design, weld