The heavy-duty PET strapping clips are used in the paving stone packing
for transportation which are as strong as 6000 N in tensile strength of each clip
Paving stone packaging with heavu-duty PET seal machine
closed look of how it work:
If you have a machine which can produce as fast as 90 pieces/minute for your production, that means you can produce about 40,000 to 50,000 pieces in one working day which is about 148 KG or 185 KG per day( if the size is 16x31x0.25mm galvanized steel) and if you can sell the products at a price of 0.005 USD/piece in your local market as minimum pricing, you will get a 200-250 USD output and sale per day and will get 36,000--45,000 USD output and sale in 6 months, and you will get the machine investment funds back after six months' production and sales if you have a 15% minimum profit out of production and sales at your local market ( but of course depending on sale's ability) on the condition that you get galvanized steel coil at a price of less than -1000- USD/ton.