求翻译：2.难加工的非金属材料的加工：PCD刀具非常适合对石材、陶瓷、硬质碳、碳纤维增强塑料、人造板材等难加工非金属材料的加工。是什么意思？

2 non-metallic materials difficult to machine processing: PCD tool is ideal for stone, ceramics, hard carbon, carbon fiber reinforced plastic, artificial board and other non-metallic materials difficult to machine processing.

2) difficult to processing of non-metallic materials: PCD knives are very suitable for the processing of stone, ceramic, hard carbon, carbon fiber reinforced plastic, artificial plating processing non-metallic materials, it is difficult to the processing.

2. difficult to process nonmetallic material processing: The PCD cutting tool suits extremely to the stone material, ceramic, the flinty carbon, the carbon fiber reinforced plastics, the man-made plate and so on difficult to process the nonmetallic material the processing.

2. processing of non-metallic materials processing: PCD cutting tool is ideal for marble, ceramics, hard carbon, carbon fiber reinforced plastics, man-made sheet metal and other hard machining processing of non-metallic materials.

2 non-metallic materials difficult to machine processing: PCD tool is ideal for stone, ceramics, hard carbon, carbon fiber reinforced plastic, artificial board and other non-metallic materials difficult to machine processing.