Sealing enhancements
No leakage even with 50kg side load force

Stackable small bucket/jar design
Stackable jars and lids, for convenience and retaining shape

Innovative tint plug design
Leakproof hard lid and tint plug, for robust applications

Tear-tab sealed lid
Fully leakproof sealable lid with easy-to-open tear tab design

Lids with spouts for liquid contents
Injection molding of high melting point PP over low melting point LDPE, for cost-effective spout lid production

Lids meeting specifications
No leakage after 0.8 meter drop at any angle

23 patents

ROC patent certificate (12)

• No. 219566 small cylindrical container structure
• No. 185186 novel cover structure 
• No. 185007 double cylinder cover engagement structure improved
• No. 260521 modified lid structure
• No. 208922 improved structure
• No. 416991 plants automatic replenishment apparatus
• No. 461600 package lid open lid configuration
• No. 466879 sealed bucket
  No. M664458 New twist-type folding lined bucket
  No. M665159 New Fixture for Container Stacking
  No. M665160 New Barrier Liner Lid and Container Using the Liner Lid
  No. M663994 New auxiliary sealing lining

China utility model patent (11)

• Patent No. ZL00262028.6 one kind of cylinder head configuration
• Patent No. ZL00252024 .9 improved structure of a double cylinder cover 
• Patent No. ZL02254612.X compact container tube structures
• Patent No. ZL200420088187.7 cylinder cover
• Patent No. ZL201120287008.2 automatic replenishment apparatus
• Patent No. ZL201320245331.2 structure having the package lid open end
• Patent No. ZL201320246945.2 sealed bucket
• Patent No. ZL201320824169.X water circulation pots
• Patent No. ZL201420214744.9 bucket cover structure 
• Patent No. ZL201621081988.X dispensing head
• Patent No. ZL201720711929.4 card having a lid solid bucket structure