Qingdao Liankai International Trade Co., Ltd., as an integrated industrial and trade enterprise specializing in materials for major infrastructure projects, has developed into a high-quality building materials supplier in the global infrastructure construction field since its establishment in 2005. With 20 years of experience in foreign trade services and strong market competitiveness, the company now has an annual sales volume of 50 million US dollars, providing comprehensive material support and solutions for global construction, drainage networks, road and bridge construction.
Our company, with the core philosophy of "providing all-round high-quality infrastructure products", has established a comprehensive product matrix covering three major categories: geosynthetic materials, scaffolding systems, and new synthetic resin building materials. This can meet the engineering construction needs in various scenarios.
1.Geosynthetic materials products include a variety of functional geotechnical materials widely used in critical engineering applications such as anti-seepage protection, slope stabilization, soil reinforcement, and dust control.
Geotechnical fabric series: including polypropylene filament geotechnical fabric, polyester filament geotechnical fabric, short fiber geotechnical fabric, with high, anti-aging, good water permeability and other characteristics, suitable for road base reinforcement, railway ballast filtration, landfill site impermeable layer protection and other scenarios
Geotechnical membrane and composite geotechnical membrane: Mainly for impermeable function, using high-quality raw materials such as high-density polyethyl (HDPE), it can effectively block water seepage and is used in impermeable projects such as sewage treatment plants, tailing dams, artificial lakes, etc;
Geotechnical grid/cell series: including high-strength geotechnical cell, stretched plastic geotechnical grid, woven polyester geotechnical grid, which used to enhance the stability of soil structure by widening road base, slope protection, dike reinforcement and other soil reinforcement projects.
2.Scaffolding system
We can provide modular scaffolding that meets engineering safety standards, compatible with different construction scenarios, covering mainstream types such as socket, Kwikstage, and bowl, with the advantages of easy assembly, strong load-bearing capacity, and high stability, suitable for supporting operations in high-rise building construction, bridge pouring, factory building, etc
3.Synthetic resin new materials
Focusing on municipal infrastructure and architectural ancillary fields, the products combine durability with environmental friendliness:
Covering series: cable trough cover, composite manhole cover, tunnel cover, made of resin composite and other materials, to solve the problems of traditional metal coversing and being stolen easily, suitable for the underground pipeline matching of municipal roads, communities and industrial parks;
Drainage ditch series: Customized plastic drainage ditches, with corrosion resistance and high drainage efficiency, for road drainage, square drainage, and factory rainwater system.
Our company has mature foreign trade service capabilities, and our products and services have been to more than 20 countries and regions around the world, covering key markets such as Europe, the United States, the Middle East, Africa, and Southeast Asia: For different' engineering standards and market demand, we provide customized product adjustments and technical support.
In addition to product supply, the company enhances customer value and meets diversified needs through “Integrated Services”:
1.Customized solutions: Provide a full-process service from material selection, scheme design to on-site technical guidance according to the geological conditions and requirements of the customer's specific project, such as customizing the combination scheme of geotechnical grid room and geotechnical fabric for complex slope protection project;
2.Centralized procurement support: Relying on the collaborative network with hundreds of partners, it integrates supporting products such as engineering vehicle spare parts, construction machinery components hardware tools, electromechanical equipment, personal protective equipment, etc., to provide "one-stop procurement" services for large-scale projects, reducing customer supply chain management costs.
In the future, the company will continue to focus on the global infrastructure construction needs, committed to providing more customers with "tailor-made best solutions" looking forward to establishing a deep partnership with global enterprises, and jointly promoting the high-quality development of infrastructure projects.
Professional construction team
Expert Engineer
Production lines
Land occupation
MissionEmployee rich, customer trust, project safe
PrincipleIntegrity is the only chance, to create a win-win situation
Core ValueMake the customers feel safe and relieved to use our products.
SpiritMake all-out effort, work together, innovation and development.
(1) Machine direction (MD) and cross machine direction (XMD) average values should be on the basis of 5 test specimens each direction.
Yield elongation is calculated using a gage length of 1.3 inches
Break elongation is calculated using a gage length of 2.0 in.
(2) The yield stress used to calculate the applied load for the SP-NCTL test should be the manufacturer's mean valuevia MQC testing.
(3) Other methods such as D 1603 (tube furnace) or D 6370 (TGA) are acceptable if an appropriate correlation to D 4218 (muffle furnace) can be established.
(4) Carbon black dispersion (only near spherical agglomerates) for 10 different views:9 in Categories 1 or 2 and 1 in Category 3
(5) The manufacturer has the option to select either one of the OIT methods listed to evaluate the antioxidant content in the geomembrane.
(6) It is also recommended to evaluate samples at 30 and 60 days to compare with the 90 day response.
(7) The condition of the test should be 20 hr. UV cycle at 75。C followed by 4 hr. condensation at 60。C.
(8) Not recommended since the high temperature of the Std-OIT test produces an unrealistic result for some of the antioxidants in the UV exposed samples.
(9) UV resistance is based on percent retained value regardless of the original HP-OIT value.
(1) Machine direction(MD) and cross machine direction (XMD) average values should be on the basis of 5 test specimens each direction. Yield elongation is calculated using agage length of 33 mm Break elongation is calculated using agage length of 50 mm.
(2) The yield stress used to calculate the applied load for the SP-NCTL test should be the manufacturer's mean valuevia MQC testing.
(3) Other methods such as D 1603 (tube furnace) or D 6370 (TGA) are acceptable if an appropriate correlation to D 4218 (muffle furnace) can be established.
(4) Carbon black dispersion (only near spherical agglomerates) for 10 different views: 9 in Categories 1 or 2 and 1 in Category 3.
(5) The manufacturer has the option to select either one of the OIT methods listed to evaluate the antioxidant content in the geomembrane.
(6) It is also recommended to evaluate samples at 30 and 60 days to compare with the 90 day response.
(7) The condition of the test should be 20 hr. UV cycle at 75。C followed by 4 hr. condensation at 60。C.
(8) Not recommended since the high temperature of the Std-OIT test produces an unrealistic result for some of the antioxidants in the UV exposed samples.
(9) UV resistance is based on percent retained value regardless of the original HP-OIT value.
(1) Alternate the measurement side for double sided textured sheet
(2) Machine direction (MD) and cross machine direction (XMD) average values should be on the basis of 5 test specimens each direction.
Yield elongation is calculated using a gage length of 1.3 inches
Break elongation is calculated using a gage length of 2.0 inches
(3) SP-NCTL per ASTM D5397 Appendix, is not appropriate for testing geomembranes with textured or irregular rough surfaces. Test should be conducted on smooth edges of textured rolls or on smooth sheets made from the same
formulation as being used for the textured sheet materials. The yield stress used to calculate the applied load for the SP-NCTL test should be the manufacturer's mean valuevia MQC testing.
(4) Other methods such as D 1603 (tube furnace) or D 6370 (TGA) are acceptable if an appropriate correlation to D 4218 (muffle furnace) can be established.
(5) Carbon black dispersion (only near spherical agglomerates) for 10 different views:9 in Categories 1 or 2 and 1 in Category 3
(6) The manufacturer has the option to select either one of the OIT methods listed to evaluate the antioxidant content in the geomembrane.
(7) It is also recommended to evaluate samples at 30 and 60 days to compare with the 90 day response.
(8) The condition of the test should be 20 hr. UV cycle at 75。C followed by 4 hr. condensation at 60。C.
(9) Not recommended since the high temperature of the Std-OIT test produces an unrealistic result for some of the antioxidants in the UV exposed samples.
(10) UV resistance is based on percent retained value regardless of the original HP-OIT value.
(1) Alternate the measurement side for double sided textured sheet.
(2) Machine direction (MD) and cross machine direction (XMD) average values should be on the basis of 5 test specimens each direction.
Yield elongation is calculated using a gage length of 33 mm
Break elongation is calculated using a gage length of 50 mm
(3) The SP-NCTL testis not appropriate for testing geomembranes with textured or irregular rough surfaces. Test should be conducted on smooth edges of textured rolls or on smooth sheets made from the same formulation as
being used for the textured sheet materials. The yield stress used to calculate the applied load for the SP-NCTL test should be the manufacturer's mean valuevia MQC testing.
(4) Other methods such as D 1603 (tube furnace) or D 6370 (TGA) are acceptable if an appropriate correlation to D 4218 (muffle furnace) can be established.
(5) Carbon black dispersion (only near spherical agglomerates) for 10 different views:9 in Categories 1 or 2 and 1 in Category 3.
(6) The manufacturer has the option to select either one of the OIT methods listed to evaluate the antioxidant content in the geomembrane.
(7) It is also recommended to evaluate samples at 30 and 60 days to compare with the 90 day response.
(8) The condition ofthe test should be 20 hr. UV cycle at 75。C followed by 4 hr. condensation at 60。C.
(9) Not recommended since the high temperature of the Std-OIT test produces an unrealistic result for some of the antioxidants in the UV exposed samples.
(10) UV resistance is based on percent retained value regardless of the original HP-OIT value.
Qingdao Liankai International Trade Co., Ltd. is a high-new technology enterprise which mainly produce and deal with Geosynthetics products series. We ensure to provide the good quality and short delivery time for costumers and regard the sale-after service.Wehave perfect service system and professionals.
The company set up the customer sercice department equipped with more than 140 sets of excellent machinery equipments.We have 186 professionals in construction and service who trained specially and posses,post cerificates and, provided technical instruction in .the project of earth construction,laying,welding geosynthetics,help costumer design construcrion method of prevent water leakage,offer free technical traning and guide at site.
