DSW mainly manufactures cryogenic Transport trailers Microbulk tanks with various pump and drive options, and the cryogenic semi-trailer is ASTM certified or other international standards. They are most commonly used to transport Oxygen, liquid nitrogen dewar Nitrogen, and Argon and are built for maximum payload, safety, economy, and longevity. WHY DSW? DSW INTERNATIONAL has been listed by the General Administration of Customs of China beginning in 2019 to provide accurate "China data" for their National Export Indicator Survey Cryogenic Storage Tanks. For more information visit our website.