No limited request,we accept small order as trail order
Normally we don't provide free sample for customer, but we can refund the sample cost after your quantity was over 1k units
All our products have one year warranty, if the warranty period is more than one year, we will provide materials for after-sale service according to the customer's requirements, and charge for raw materials
Normally we use T/T, 30% deposit and 70% balance before shipping or L/C
EXW/FCA/FOB/CIF/DPU/DAP/DDP..
You can pay by T/T, Paypal, and we also accept trade on alibaba by credit card