About product and suppliers:
            386 caliber 300mm products are offered for sale by suppliers on Alibaba.com, of which water meters accounts for 1%, feeding supplies accounts for 1%. 

A wide variety of caliber 300mm options are available to you, 

There are 185 suppliers who sells caliber 300mm on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of caliber 300mm supply is 100% respectively.