Zentsukyo
Japan Telecommunications Equipment
and Materials Manufacturers Cooperative Association
Asakuraseisakusho Co, Ltd 
OTANI KOGYO CO., LTD.
Taiei Seisakusho Co.,Ltd.
Takacom Corporation
Takachiho Sangyo Co., LTD.
Tamachi Electric Industry Co.,Ltd.
TOKYO COMMUNICATION EQUIPMENT MFG.CO.,LTD.
TOMEI TSUSHIN KOGYO CO.,LTD.
NAGAMURA MANUFACTURING CO.
NISSHIN ELECTRIC CO.,LTD.
Nippon Seisen Cable, Ltd.
HACHIKO ELECTRIC CO.,LTD.
MASARU INDUSTRIES,LTD.
MSK Technologies Co.,Ltd.
MIYOKAWA manufacturing Co.ltd
WATANABE CO. ,LTD
From mold development to product planning, design, and manufacturing, most of the manufacturing process is integrated production in-house
Watanabe Seisakusho is celebrating its 112th anniversary this year by manufacturing products.
This time, we introduce solutions and optical end box.