Freshwater pearl pearl powder, 50 grams, a single package, so mask, welcome to wholesale.
淡水珍珠珍珠粉，50克，单包，做面膜用，欢迎批发。
Advance a series of parameters to support mask making, process, package and test.
提出工程中要求的一系列参数支持制版、流片、封装和验证。
A semiconductor package substrate for preventing deformation mainly comprises a flexible dielectric layer, a plurality of pins, at least one reinforced metal pattern and a solder mask layer.
一种改善变形的半导体封装基板，主要包括一可挠性介电层、多数个引脚、至少一补强金属图案以及一防焊层。
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