WorkVenture gives you an inside look at what it's like to work at Naiyai Metal Trade Co., Ltd., office & team photos, reviews and more. This is the Naiyai Metal Trade Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Naiyai Metal Trade Co., Ltd..Apply to children foundationApply to VaropakornApply to Living InsiderApply to WIKA Instrumentation