How can I contact with your company? We are always ready to serve you via Email, Telephone, Fax, Skype, Whatsapp or Mobile What is your working time? Monday-Saturday : 7:30AM-17:00PM (Beijing time, GMT+08.00) We have public holiday during May.1-3, Oct.1-7 and Chinese New Year holiday . Pls email us during our holiday if u have any question Do you provide free samples? Yes, we can provide a free sample for testing,buyer should bear all the shipping costs. What is your payment terms? T/T,L/C,D/A,D/P,Western Union,MoneyGram,Paypal What is the lead time? Usually sample lead time is 7 days after payment has been confirmed.