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About product and suppliers:
        Alibaba.com offers 5,429 thick metal door products. About 6% of these are doors, 5% are locks, and 5% are door & window handles. 

A wide variety of thick metal door options are available to you, such as entry doors, security doors, and special doors. You can also choose from steel, aluminum alloy, and stainless steel. As well as from exterior, industrial, and interior. And whether thick metal door is swing, sliding, or rolling. 

There are 5,429 thick metal door suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of thick metal door respectively. 

Thick metal door products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,736 with ISO9001, 511 with ISO14001, and 480 with Other certification.