WorkVenture gives you an inside look at what it's like to work at Onsawin Plastic Co., Ltd., office & team photos, reviews and more. This is the Onsawin Plastic Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Onsawin Plastic Co., Ltd..Apply to 945 HoldingApply to MarsApply to Wind Energy HoldingApply to WV