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青岛海西数控锻压机械有限

Manufacturing and sales of plastic injection molding products.

Ryoka Kogyo Co., Ltd.

Manufacturing and sales of various automation control devices.

Nichiden Kogyo Co.,Ltd.

Sales of air conditioner, design, installation and maintenance of air conditioning facilities.

Ryoka Tech Co.,Ltd.

Manufacturing and sales of plastic injection molding products.

ryoka malaysia