|Description:||cheap trophies in bulk|
|Material:||gold&silver&copper metal, Crystal|
|Technique:||cut, grind, polish, laser engrave|
|Production:||OEM and ODM|
|Payment term:||TT 50% deposit in advance , the balance is paid before delivery|
|Shipping method:||By express, By air, By sea according to your request.|
Pujiang Newsanhe Crystal Crafts Co., Ltd. We have more than 14 years experience for making all kinds of crystal Crafts , and now, our factory have a big development, all of crystal crafts, polyresin crafts and metal crafts, all we can do,
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We supply kinds of crystal paperweights, such as dome crystal paperweight, rectangle crystal paperweight, decagon crystal paperweight, crystal pyramid paperweight, heart-shaped crystal paperweight, Pentagon crystal paperweight, square crystal paperweight etc.
If u want to custom them, Just share me ur minds and designs, then i can give u a proper quotation ASAP
in this lecture
(2) on the classification of glass and metal sealing, pointed out that in addition to the two direct sealing, there is a kind of indirect sealing, in which low-melting glass powder solder has been widely used in indirect sealing.Due to the direct sealing between the lead glass used in the core column of the electric vacuum device and the sodium calcium glass used in the glass shell, the high temperature of 950 ~ 1050℃ is required, which will damage the performance of the cathode and the aspirating material.It is ideal if it can be sealed at 500 ~ 600℃.