Inventor

WEI WENJING

CN2 patents

Patents

2 patents

US9919833B2Mar 20, 2018

Collapsible container

SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD3 citations67

US9731873B2Aug 15, 2017

Cover device for covering a built-in valve mounting channel port of IBC and container

SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD0 citations33