Company Profile
Subtitle
Qingdao Sealtech Packing Materials Co.,Ltd. specializes in the integrated services of R&D,production and sales of resealable bags,zipper bags,dust-free cleaning wipes and medical wipes. Adhering to the production principles of high standards,strict management and superior quality,the enterprise exercises rigorous control over raw materials,manufacturing processes,clean production environment and finished-product inspection. Its products are widely used in medical,electronics,daily-use goods,industrial cleaning and other fields. Located at No.8 Anhe 1st Road,Longshan Sub-district,Jimo District,Qingdao City,Shandong Province,the company covers a building area of 7,500 sqm,among which the 100,000-class clean workshop occupies 1,620 sqm. It is the only factory in Shandong Province in this industry equipped with a 100,000-class clean workshop.
Featured Products
US$0.01-0.10/ Piece
2,000 Pieces (MOQ)
US$0.01-0.10/ Piece
2,000 Pieces (MOQ)
US$0.01-0.10/ Piece
2,000 Pieces (MOQ)
US$0.01-0.10/ Piece
2,000 Pieces (MOQ)
US$0.01-0.10/ Piece
2,000 Pieces (MOQ)
Plastic Bag Transparentcy Clear OPP Bag Food Grade Packaging Bags Storage Bag Card Dispenser Bag
US$0.01-0.10 / Piece
2,000 Pieces (MOQ)
Hot Products
Large-Capacity Zipper Travel Storage Bag for Clothes/Shoes, Moisture-Proof Storage, Baby Clothes Bag, Thick and High-Quality Slider Bag
US$0.01-0.10 / Piece
2,000 Pieces (MOQ)
COMPANY PROFILE
Our group operates three specialized manufacturing facilities in Qingdao, structured under Qingdao Zhonghai Marine Machinery Co., Ltd. (Parent Company), alongside its two subsidiaries: Qingdao Sealtech Packing Materials Co., Ltd. And Qingdao Hidoon Protection Technology Co., Ltd.
This multi-factory setup allows us to deliver excellence across packaging, marine engineering, and protective equipment sectors.
1. Qingdao Sealtech Packing Materials Co., Ltd. (A Subsidiary of Qingdao Zhonghai Marine Machinery) SEALTECH is a premier manufacturer dedicated to the R&D, production, and sales of high-quality plastic packaging solutions.
Core Products:
Food ziplock bags, slider bags, OPP heat-sealable bags, and PE round-bottom bags.
Quality & Compliance:
Manufactured with food-grade materials meeting FDA, EU 10/2011, RoHS, and Japan's Food Sanitation Law.
Infrastructure:
Operates a Class 100, 000 Cleanroom with a stringent quality control system.
Applications:
Customizable solutions for the food, medical, electronics, and industrial sectors.
2. Qingdao Zhonghai Marine Machinery Co., Ltd.
(The Parent Company Est. 1997)
Established in 1997 (formerly Qingdao Northern Shipping Engineering), Zhonghai Marine is a seasoned enterprise specializing in hydraulic systems and marine equipment.
Facilities: 5, 000sqmmproduction plant located in Chengyang District, supported by a 200sqm
R&D center.
Core Products:
Marine hydraulic systems for life-saving/rescue equipment, hydraulic cylinders, winches, pump stations, and high-pressure hoses.
Certifications:
Products are certified by CCS, BV, and DNV.
Capabilities:
Equipped with CNC machining centers, automatic welding machines, and specialized test benches.
Global Reach:
Products exported to the USA, Japan, South Korea, and Singapore.
3. Qingdao Hidoon Protection Technology Co., Ltd.
(A Subsidiary of Qingdao Zhonghai Marine Machinery Est. 2015)
Blackshield focuses on the R&D, production, and sales of high-performance respiratory protection.
Facilities:
9, 000sqm facility housing two Class 100, 000 Cleanrooms.
Production:
Equipped with 33 fully automatic production lines and automated visual inspection systems.
Capacity:
Daily output reaches 1, 000, 000 pieces.
Product Range:
Medical masks, civilian masks, and industrial dust-proof masks.
Philosophy:
Committed to creating products that exceed customer expectations and delivering superior service to add value to society.
This multi-factory setup allows us to deliver excellence across packaging, marine engineering, and protective equipment sectors.
1. Qingdao Sealtech Packing Materials Co., Ltd. (A Subsidiary of Qingdao Zhonghai Marine Machinery) SEALTECH is a premier manufacturer dedicated to the R&D, production, and sales of high-quality plastic packaging solutions.
Core Products:
Food ziplock bags, slider bags, OPP heat-sealable bags, and PE round-bottom bags.
Quality & Compliance:
Manufactured with food-grade materials meeting FDA, EU 10/2011, RoHS, and Japan's Food Sanitation Law.
Infrastructure:
Operates a Class 100, 000 Cleanroom with a stringent quality control system.
Applications:
Customizable solutions for the food, medical, electronics, and industrial sectors.
2. Qingdao Zhonghai Marine Machinery Co., Ltd.
(The Parent Company Est. 1997)
Established in 1997 (formerly Qingdao Northern Shipping Engineering), Zhonghai Marine is a seasoned enterprise specializing in hydraulic systems and marine equipment.
Facilities: 5, 000sqmmproduction plant located in Chengyang District, supported by a 200sqm
R&D center.
Core Products:
Marine hydraulic systems for life-saving/rescue equipment, hydraulic cylinders, winches, pump stations, and high-pressure hoses.
Certifications:
Products are certified by CCS, BV, and DNV.
Capabilities:
Equipped with CNC machining centers, automatic welding machines, and specialized test benches.
Global Reach:
Products exported to the USA, Japan, South Korea, and Singapore.
3. Qingdao Hidoon Protection Technology Co., Ltd.
(A Subsidiary of Qingdao Zhonghai Marine Machinery Est. 2015)
Blackshield focuses on the R&D, production, and sales of high-performance respiratory protection.
Facilities:
9, 000sqm facility housing two Class 100, 000 Cleanrooms.
Production:
Equipped with 33 fully automatic production lines and automated visual inspection systems.
Capacity:
Daily output reaches 1, 000, 000 pieces.
Product Range:
Medical masks, civilian masks, and industrial dust-proof masks.
Philosophy:
Committed to creating products that exceed customer expectations and delivering superior service to add value to society.
Authentication
Business Type:
Manufacturer/Factory & Trading Company
Main Products:
Zipper Bag
,
Slider Bag
Year of Establishment:
2025-08-25
Number of Employees:
25
Address:
1-3 Floors, East Side of No. 3 Factory Building, No. 8, Anhe 1st Road, Longshan Street, Jimo District, Qingdao City, Shandong Province, Qingdao, Shandong, China
Solutions
OEM/ODM
Factory Tour
Sample Order