Such kind of big center hole is only suitable for round shape glass lids. The size of the center hole depends on customer’s special requirement. And bigger hole size, higher waste rate of semi-finished goods and tempered, while output rate is lower. Production cost will increase and price will be comparatively high.
We need to use the cutter to drill the hole, different sizes of central hole require different cutter. Therefore, if we don’t have ready cutter same as your sizes, we need to open the mould for cutter, it will take about 3 days more to make the sample, meanwhile, extral mould charge will be caused.
You are warmly welcome to visit our factory to see our operation so that we can explain to you the production process in detail. You will be impressed of our factory and we have the confidence that we will be your reliable partner in your business.
Q: when is the sample delivery time?
-- if we don’t have cutter as your central hole, it will take about 6days for produce the sample. About three days for opening the mould of cutter.