On　the　net　the　commercial　city,　electronic　commerce,　has　the　China　building　material,　raw　material,　the　commodity　apartment,　the　building　material,　the　chemical　material,　chemistry　material,　the　metal　material,　the　hardware　tool,　the　electronic　products,　the　digital　product,　the　medical　instrument,　the　medical　equipment,　the　mechanical　device,　the　packing　equipment,　the　printing　mechanism,　the　complete　set　of　equipment,　the　medicine　healthy　product,　the　sports　equipment,　the　sporting　goods,　the　clothing　shoes　and　hats,　the　plastic　rubber,　the　windows　and　doors　floor,　the　transportation　energy,　each　kind　of　vehicles,　the　instrument　measuring　appliance,　food　drink,　the　fruit　vegetables,　the　agricultural　means　of　production,　the　botanical　garden　afforests,　the　industrial　art,　toy　art,　the　electronic　primary　device,　the　domestic　electric　appliances,　the　industrial　equipment,　the　industry　electric　appliance,　the　textile　material,　the　cosmetology　styles　hair,The　fitness　equipment,　the　tableware,　the　ceramic　product,　the　entertainment　thing,　guards　against　on　peacefully　the　monitoring　product　net　the　store,