详述: 汽缸 + 活塞 + 环 + 销+油封
材质：铝合金
包装：理研彩盒包装
付款方式：30%定金，交货后70%
交货日期：收到定金内20天
Details: cylinder + piston + ring + pin+seal
Material: Aluminum alloy
The packaging: riken color box packaging
Payment: 30% deposit, 70% after delivery
Delivery date: within 20 days after receipt of deposit