Major Business Partners (water supply and sewage equipment and materials)

製品名	製造元
Ductile iron pipes	Kubota Corporation
Ductile iron pipes	Kubota Construction Co., Ltd.
Ductile iron deformed pipes	Okamoto Co.,Ltd.
	HAS Co.,ltd.
	Kyushuchuutetsukan Corporation
Partition valves / Valves / Fire hydrants / Air valves	Kubota Corporation
	Maezawa Industries, Inc.
	Sumida Iron Works Co.,Ltd
	SHIMIZU ALLOY MFG.CO.,LTD.
	SHIMIZU IRON WORKS CO., LTD.
	KITZ Corporation
	Kyowa Industrial Co., Ltd.
	SHIMIZU KOGYO Co., Ltd.
Vinyl pipes / Polyethylene pipes	Kubota ChemiX Co., Ltd.
Vinyl pipes / Polyethylene pipes	MAEZAWA KASEI INDUSTRIES CO., LTD.
Ductile iron pipes, various fittings, non-cutoff water partition valves/ Expandable flexible pipes	TAISEI KIKO Co., ltd.
	Cosmo Koki co., ltd.
	SK-KAWANISHI Co., Ltd.
	Suiken Co., Ltd.
	THE VICTAULIC COMPANY OF JAPAN LIMITED
	TOTOZEN Co.,Ltd.
	KURODITE CO., LTD.
	Taiyo Joint Co., Ltd.
Water supply materials and meters	MAEZAWA KYUSO INDUSTRIES CO., LTD.
	AICHITOKEIDENKI CORPORATION
	Azbil Kimmon Co., Ltd.
	VENN.Co,ltd
	NIPPO VALVE Co.,Ltd.
Special pipes	MESCO, Inc.
Simple water shutoff valves	Chububika Co., Ltd.
Boxes/Valve housings	HINODE, Ltd.
	Tomisu Co., Ltd.
	Daimon Co., Ltd.
	Kusatake Concrete Industry Co., Ltd.
Display and protection materials	SUN-ESU RUBBER INDUSTRY INC
Display and protection materials	YOTSUGI CO., LTD.
Bolts	SDC Tanaka Inc.
Bolts	Tomoe Works Co., Ltd.
Septic tanks	Kubota Johkasou Systems Corporation