求翻译：手机外壳是通过磨具冲压成型的，手机外壳多以塑料为主，从材质上可以分为 ABS 、PA尼龙、PA12、ABS+PC合金、PA66、PVC、TPU、HDPE、PC聚碳 、PP聚炳（丙）HIPS改苯（丙）、LDPE、LLDPE、PBT聚酯 、PET、POM甲醛 、 PPO、PMMA 等几类。按用途可以分为普通级、耐温级、阻燃级、耐冲级、电镀级。手机外壳厂商根据各个手机品牌型号特点加工出一系列的有个性的手机外壳方便用户更换。是什么意思？

Mobile phone shell is abrasive stamping molding, cell phone case to plastic-based materials can be divided into abs pa Nylon, pa12, abs + pc alloy, pa66, pvc, tpu, hdpe, pc polycarbonate, pp. poly Ping (c) HIPS to benzene (C), ldpe, lldpe, pbt polyester, pet, pom formaldehyde, ppo, pmma and other ca

Cell phone case is made by grinding, hand drawn from more than a plastic housing, mainly from material can be divided into ABS PA , nylon, PA ABS , 12 + PC alloy 66, PVC PA , , , TPU HDPE , PP PC gathered together, and (c) HIPS ping to benzene (c) , LLDPE LDPE , , , PET PBT polyester, formaldehyde,

The handset outer covering is through the grinding tool ramming formation, handset outer covering many by plastic primarily, may divide into ABS, the PA nylon, PA12, the ABS+PC alloy, PA66, PVC, TPU, HDPE, PC from the material quality gathers the carbon, PP gathers splendid (3) HIPS to change the be

Mobile phone case is through abrasive metal forming, mobile phone casing to make more plastic from material can be divided into ABS, PA nylon, PA66, PA12, ABS+PC alloy, PVC, TPU, HDPE, PC Tsui carbon, PP Tsui Ping (c) HIPS to benzene (c), LDPE, LLDPE, PBT polyester, PET, POM formaldehyde, PPO, PMMA

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