A: We have comprehensive core advantages in products, production, quality control, after-sales service and cost performance, which are trusted by global customers:
1. Market-proven quality: Our instruments have been verified by the market for years. Dozens of front-line instructors continuously optimize the operation parameters, ensuring better stability and using effect than peer products, with a large number of practical application cases for support.
2. Professional production & QC system: We have 3 standardized production lines, a dedicated QC team and skilled workers with over 5 years of industry experience, which guarantees stable and reliable product quality.
3. Efficient after-sales response: All after-sales problems can be responded and solved in a timely manner, with a complete 3-year warranty and long-term parts supply system.
4. High cost performance: Compared with the same type of products in the market, our instruments have better quality and configuration with more favorable prices.

A: Yes, we offer a full-process OEM customization service with a professional dedicated design department. We can customize exclusive logos, operation interfaces and independent equipment appearances for your brand, and also accept large-batch customization orders. In addition, we can assist you in handling relevant qualification certificates to fully meet all your personalized customization needs.

A: The delivery lead time is determined by the order type and quantity:
- In-stock goods: 3-7 days
- Customized/OEM orders: 15-30 days

A: Available shipping methods & corresponding delivery time:
- By sea: 20-35 days
- By air: 5-7 days
- By international courier (DHL/TNT/FEDEX): 3-5 days

Freight & tax rules: Quotation covers instrument cost and China domestic shipping. We can assist with reliable door-to-door international logistics; all related international fees (including tariffs and other taxes) are borne by the customer.

A: We have built a strict multi-level quality control system and provide a clear quality guarantee for all products:
1. International certification compliance: All our instruments have passed CE and RoHS certifications, fully meeting international quality and safety standards.
2. Pre-shipment full inspection: Before delivery, we will confirm the packing quantity with you via video, conduct a full performance test on all instruments, and show you the entire testing process in the video to ensure 100% qualification of the delivered goods.
3. Unconditional quality guarantee: We promise a full refund for any quality problems of the delivered instruments.

A: All our instruments support 110V/220V customized voltage, and we can accurately match the plug standards of different countries and regions to fully meet your local usage requirements.

A: We have a complete production and follow-up management system to fully guarantee on-time delivery:
1. Stable production capacity: 3 stable production lines and skilled workers with more than 5 years of experience to realize standardized batch production.
2. Real-time progress tracking: A special professional team tracks the production progress in real time and feeds back the production and logistics status to you at all key nodes in a timely manner.
3. Contractual guarantee: Clear delivery clauses will be signed in the formal sales contract to ensure the goods are delivered as promised.

A: We provide a comprehensive and long-term after-sales service system for all instruments to solve your worries:
1. 3-year official warranty for the whole machine;
2. Within the 3-year warranty period, free replacement parts and professional video guidance for maintenance are provided (which can solve more than 90% of common usage problems);
3. Sustained supply of replacement parts for the instruments is still available after the 3-year warranty period;
4. Pre-made professional training videos covering common usage problems and operation precautions are provided for your easy reference at any time.