Polymer coated ceramic powder can be used to manufacture mold shell with selective laser sintering technology, and the mold shell is usually used to cast and produce metal part.
利用激光烧结快速成型技术可以烧结覆膜陶瓷材料，形成铸造用型腔壳体并直接应用于铸造，制作金属零件。
Surface mounted closers shall be full rack and pinion type, with pressure cast alloy shell, with no more than 53 mm (2 1/8") projection from the door surface."
表面安装式关门装置应是全齿条的和小齿轮型的，带压力铸造合金的外壳，从门表面突出不超过53毫米（2 1/8英寸）。
Aluminum alloy is used to cast the shell for its beauty and durableness. Tricolor energy-saving lamps and transparent lampshades are used for enjoyable appearance and good practicality.
外型设计采用铝合金压铸的传统灯具造形；美观大方、经久耐用；选用三基色节能灯泡配以透明灯罩，极具观赏价值和实用价值。
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