China Cryogenic Liquid Nitrogen Storage Tank factory
China Cryogenic Liquid Nitrogen Storage Tank factory 鈽匫ur History 鈥?In 1986, heze huawang high pressure vessel experimental plant of shandong academy of sciences was established. 鈥?In 1993, he ze huawang high pressure vessel co., LTD. 鈥?In 1995, obtained the earliest class D manu