Alfa Laval hygienic gasketed plate heat exchangers use lock washers for the tightening bolt, making the assembly job faster as the lock washer prevents the nut or bolt head from rotating during opening and closing.
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Jiesheng Hardware located in QiaotouTown Dongguan city Guangdong Province, now we has all kinds of imported machines, CNC computer lathe , computer processing center, precision automatic lathe, screw machines.