1) Can we make a different size or different materail, say like customized item? surely, one of our main feature is OEM 2) Are those spring probe or pogo pins produced by your company? Surely, our production department are with over 30 sets of CNC equipments. 3) Do you have a registed brand? Yes, SFENG PROBE 4) Do you have QC process? yes, we have a testing department. 5) How is it going with Suzhou shengteng & shengfeng probe? Suzhou shengteng Electronic Company is our registed company name; shengfeng probe is registed brand name. 6) can I have a free sample before placing order? If the standard items, with in stock, No problem, we can send 3 ~ 5 pcs for your testing approval; if a special request of item, supposed a new mould, we will charge a certain deposit and can be refundable.