The gear of gear box uses high quality alloy steel with nitrogencase hardening dispose and grinded accurately and particularly; it has steady transmission ,low noise,big bearing capacity,low rising rate in temperature and long life ,and so on superiorities.
. Never wire funds via money transfer services/money wire services - anyone who asks you to do so is a scammer.
. Meet the seller, local transactions are the safest.
. Avoid deals involving shipping or escrow services and know that only a scammer will "guarantee" your transaction.