| FAQ
I. Product Basics & Selection
1. Core Advantages & Application Scenarios
It features maintenance-free lubrication, wear resistance, adaptability to harsh environments, and low noise. Suitable for low-speed, heavy-load mechanical parts where frequent lubrication is inconvenient.
2. How to Confirm Size Matching
Provide key parameters like inner diameter, outer diameter, and length, and specify equipment working conditions. For first-time purchases, it's recommended to apply for 1-2 samples for testing.
3. Material Specifications & Customization
Regular materials are brass + graphite. Customization (e.g., material upgrade, graphite content adjustment) is available with drawings required, and the minimum order quantity (MOQ) for customization is no less than 500 pieces.
II. Bulk Purchasing Process & Policies
1. MOQ & Pricing
For end users: MOQ is 100 pieces for regular models, 500 pieces for customized ones.
For distributors: After cooperation, MOQ is 50 pieces for regular models, 300 pieces for customized ones, with tiered rebates available.
Bigger batches enjoy higher discounts; customization requires an additional 10%-20% fee.
2. Payment Methods & Credit Period
Supports online corporate transfer and "30% advance deposit + 70% balance after goods check before delivery".
Customized products require a non-refundable 50% advance deposit.
3. Ensuring Quality Consistency with Samples
Before purchase: Request product test reports and clarify quality standards.
During receipt: Randomly sample (sampling rate ≥3%) for third-party testing; the responsible party bears testing fees.
III. Logistics & Delivery
1. Delivery Cycle & Logistics Options
Regular models: Shipped in 7-15 working days if in stock; 30 working days if out of stock.
Customized products: Production cycle is 45-60 working days.
Logistics: Express for ≤100kg, freight logistics for ≥100kg, and air freight for urgent orders.