TOBO GROUP
TOBO International Trading (Shanghia) Co. , LtdTianda Oil Pipe Co. , Ltd
TOBO Pipeline Equipment Co. , Ltd TPCO & TISCO Pipe (Tianjin) Co. , Ltd.
September 7, 2021
เท่ากับ TEE DN 4 ", ASTM A815- UNS S31803, DIMENSIONS AS ASME B16.9, CLEAN END, DIMENSIONS AS ASME B16.25, SCH-10S
