千代田通商 气管：千代田通商（チヨダ）TPS-8-45TPS-8-30TPS-8-15TPS-6-45TPS-6-30TPS-6-15TPS-4-45TPS-4-30TPS-4-15TPS-12-45TPS-12-30TPS-12-15TPS-10-45TPS-10-30TPS-10-15TP-8X5.0-20 BTP-8X5.0-100TP-6X4.0-20 BTP-6X4.0-100TP-4X
