收了一套 亚克力机械爪的散件，准备尝试组装一下。 All parts 2 left claw +2 right claw +4 half claw +2 plate fixer 双通铜柱 Double copper column 铜柱 copper pillar 螺母 Nut 螺丝 Screw Prepare several parts of the picture an