Product Description Si3N4 partsFAQ1. How We Can Get Offer You can send your drawing first, and also please inform us the tolerance, the quantity, then we will offer you within 12 hours.2. What' s the delivery time 7-45 days, it is depand on your quantity3. Can you provide the samples Yes, we can provide the free sample if we have the stock, but the courier fee will be colllect.4. Why Choose us 1. Advantages of products'quality and competitive price 2. Could learn customers'requirement/need very well 3. Professional sales team to contact you easily 4. Have a good control for quality5 .More information you can find in our website:www.ceramore.cn