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A: R&D and produce in our own factory.
A: Generally it is only 1 day if the goods are in stock; 5-10 days if the goods are not in stock; 15-20 days for new part.
A: Yes, we could offer free sample, but do not pay for freight.
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below: kyong@simart.com.cn.
New products from manufacturers at wholesale prices