Why Shanghai filterworkshop recommends ptfe sewing thread for automatic filter bag sewing machines? When your high temperature filter bags are sewn by automatic filter bag sewing machines, shanghai filterworkhop will advise you to use ptfe sewing thread. Why? Because, the sewing speed of automatic filter bag sewing machine is higher, it has high request of strength of filter bag sewing thread. Or else the filter bag thread will break easily. And the ptfe sewing thread from shanghai filterworkshop is with high strength, and will not break during sewing filter bags at high speed. www.filterworkshop.com/ptfe-sewing-thread-p00036p1.html

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