แคมป์ล็อคท่อปฏิบัติงานให้เสร็จ ดังเช่น
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แคล้มรัดท่อเหล็ก ส่วนใหญ่ก็ยังชอบใช้ไขควงปกติเมื่อปฏิบัติงานกับท่อเหล็ก