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There are only a handful of major factories in China (and around the world for that matter) and they produce all the different brands we see. It's quite possible that a more recognized brand like Benchmade has knives made in the same factory that produces M-Tech.
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you are incorrect.. ther eis around 600 knife factories in china making kitchen knvies pocket knvies and "hunting" knives,,, ive never seen a chinese factory which makes the whole knives... or sheaths or sucyh,, normaly thye buy each componenet and the only produce the stamped metal parts and the blade gerinding...
the bone handles are made by specific firms making normaly cheap bone decorations and such,, the sheaths by hand bay produers and wallet producers (hence the bad quality)
ther eis several large factoriwes in china that specilise in sheath production about 4 or 5.. they can produce a decent sheath,,
no knife factories produce a compleat knife.
ther eis several "famous brands" in china that own knif efactories they produce kitchen knive sin the traditional chinese style.. nothing more..
i think personaly ive seen some 100s of factories and i kknow in yaingjiang ther eis around 350 or more... in shenzen about 30-50 and in sveral other cities there is quite afew.. shezen is normaly table cutlery,, yaingjiang normaly cheap folding knvies , multi toold ,ect ect.