Threebirds Trolley Case Threebirds Leather Co.,Ltd,a proffesional manufacture of design,produceing and sale for trolley cases,has designed production experience nearly 20 years.Founded in 1992,and it is situated at The Capital of Chinese Bags--Baigou,Hebei provice in China.Our company has 20000 square meters,more than 500 experinced workers,and the produtivity achieves 1 million packages.The company has abundant technology ,complete equipment,ad