Qingdao Grantseed Rubber Co., Ltd. is a manufacturer and exporter specializing in hydraulic hoses, industrial hoses and PVC hoses. Our core hydraulic and industrial hose production is controlled through our manufacturing facility in Qingdao, China. For selected PVC hose products and other products, we also work with qualified manufacturing partners according to specific product requirements.

Our core hydraulic and industrial hoses are manufactured in Qingdao, Shandong, China. Our manufacturing operations include hose production, testing and quality inspection. We serve customers in more than 65 countries and regions.

Our product range covers three major categories:

• Hydraulic Hoses

• Industrial Rubber Hoses

• PVC Hoses

Our hydraulic hose range includes products such as 1SN, 2SN, 4SP, 4SH, SAE 100R3, SAE 100R6, 2SC and other specifications. Our industrial hose range includes sandblast hose, air hose, oil hose, welding hose, suction and discharge hose, steam hose and other application-specific hoses.

Our hoses are exported to customers in more than 65 countries and regions, covering Europe, Latin America, North America, the Middle East, Southeast Asia, Africa and other international markets.

The correct hose should be selected according to the actual working conditions. Important factors include:

• Working medium

• Working pressure

• Temperature

• Hose size

• Application

• Working environment

• Required hose standard

• Flexibility requirements

• Abrasion and weather exposure

• Connection and fitting requirements

If you are unsure which hose is suitable, send us your application details and our technical team can help review the requirements.

To prepare an accurate quotation, we recommend providing the hose type, size, working pressure, working medium, temperature, required standard, length, quantity, packaging requirements and any special marking or OEM requirements.

If you have an existing specification, drawing, product photo or competitor sample, you can also send it to us for review.

We manufacture hydraulic hoses according to internationally recognized standards and customer specifications. Our product range includes hoses corresponding to SAE and DIN/EN standards, such as DIN EN 853 1SN, DIN EN 853 2SN, DIN EN 856 4SP, DIN EN 856 4SH, SAE 100R3, SAE 100R6, SAE 100R13 and SAE 100R15.

Specific technical requirements should be confirmed according to the product standard and application.

These hoses have different reinforcement constructions and performance characteristics.

• 1SN generally uses one layer of steel wire braid, while 2SN uses two layers of steel wire braid for higher pressure capability.

• 2SC also uses two layers of steel wire braid but is designed with a more compact construction and smaller outside diameter in applicable sizes.

The correct selection depends on the required pressure, fitting compatibility, installation space and applicable standard.

Quality control is carried out throughout the production process. Depending on the product, this may include raw material control, rubber compound preparation, reinforcement processing, dimensional inspection, appearance inspection, pressure-related testing and final inspection.

Finished products are inspected according to the agreed product specifications and quality requirements before shipment.

Yes. We can provide relevant product specifications, technical data and factory inspection or test reports according to the product and customer requirements.

For specific projects requiring additional verification, third-party testing can also be discussed according to the required test standard.

Yes. Batch/Lot identification can be used to support production traceability. Depending on the product and order requirements, relevant production and inspection records can be linked to the corresponding batch.

This helps customers identify production information and investigate quality issues when necessary.

We review quality claims based on the product specification, application conditions, batch/lot information, inspection records, photos, videos and, where necessary, returned samples or further testing.

Our objective is to identify the root cause and provide a reasonable solution for verified manufacturing or material-related issues.

Warranty conditions depend on the product and the agreed order specifications.

Generally, verified manufacturing or material defects are covered according to the agreed warranty terms. Normal wear and tear, improper installation, misuse, unsuitable application conditions and operation outside the agreed specifications are not considered manufacturing defects.

The specific warranty period and conditions can be confirmed before order placement.

 Yes. We support customer-specific hose marking for qualified OEM and private-label projects.

Depending on the product and production requirements, marking may include brand name, hose specification, working pressure, applicable standard, production information and other agreed information.

Yes. Depending on technical feasibility and order quantity, we can discuss customized requirements including hose construction, size, working pressure, cover color, hose marking, packaging and other product specifications.

Yes. We support customized packaging and labeling for distributors, importers and OEM customers.

Depending on the product, options may include hose marking, labels, nylon belts, transparent PVC wrapping, cartons, pallets and other agreed packaging solutions.

Yes. Samples can be provided for product evaluation before bulk production.

Sample preparation time depends on whether the required product is a standard item or a customized specification.

MOQ depends on the hose type, size, construction, customization requirements and production schedule.

For standard products, we can discuss flexible quantities according to customer requirements. Please send us the product specifications and required quantity for a specific MOQ.

Lead time depends on product type, specifications, order quantity, raw material availability and production schedule.

For repeat orders with confirmed specifications, we provide a production schedule before order confirmation. For customized products, lead time will be confirmed after reviewing the technical requirements.

Yes. Depending on product dimensions, weight, packaging and order quantity, different hose types and sizes can be combined in the same container.

Our team can help optimize the loading plan according to the customer's product mix and container requirements.

Qingdao Grantseed Rubber Co., Ltd. is a manufacturer and exporter specializing in hydraulic hoses, industrial hoses and PVC hoses. Our core hydraulic and industrial hose production is controlled through our manufacturing facility in Qingdao, China. For selected PVC hose products and other products, we also work with qualified manufacturing partners according to specific product requirements.

Our core hydraulic and industrial hoses are manufactured in Qingdao, Shandong, China. Our manufacturing operations include hose production, testing and quality inspection. We serve customers in more than 65 countries and regions.

Our product range covers three major categories:

• Hydraulic Hoses

• Industrial Rubber Hoses

• PVC Hoses

Our hydraulic hose range includes products such as 1SN, 2SN, 4SP, 4SH, SAE 100R3, SAE 100R6, 2SC and other specifications. Our industrial hose range includes sandblast hose, air hose, oil hose, welding hose, suction and discharge hose, steam hose and other application-specific hoses.

Our hoses are exported to customers in more than 65 countries and regions, covering Europe, Latin America, North America, the Middle East, Southeast Asia, Africa and other international markets.

The correct hose should be selected according to the actual working conditions. Important factors include:

• Working medium

• Working pressure

• Temperature

• Hose size

• Application

• Working environment

• Required hose standard

• Flexibility requirements

• Abrasion and weather exposure

• Connection and fitting requirements

If you are unsure which hose is suitable, send us your application details and our technical team can help review the requirements.

To prepare an accurate quotation, we recommend providing the hose type, size, working pressure, working medium, temperature, required standard, length, quantity, packaging requirements and any special marking or OEM requirements.

If you have an existing specification, drawing, product photo or competitor sample, you can also send it to us for review.

We manufacture hydraulic hoses according to internationally recognized standards and customer specifications. Our product range includes hoses corresponding to SAE and DIN/EN standards, such as DIN EN 853 1SN, DIN EN 853 2SN, DIN EN 856 4SP, DIN EN 856 4SH, SAE 100R3, SAE 100R6, SAE 100R13 and SAE 100R15.

Specific technical requirements should be confirmed according to the product standard and application.

These hoses have different reinforcement constructions and performance characteristics.

• 1SN generally uses one layer of steel wire braid, while 2SN uses two layers of steel wire braid for higher pressure capability.

• 2SC also uses two layers of steel wire braid but is designed with a more compact construction and smaller outside diameter in applicable sizes.

The correct selection depends on the required pressure, fitting compatibility, installation space and applicable standard.

Quality control is carried out throughout the production process. Depending on the product, this may include raw material control, rubber compound preparation, reinforcement processing, dimensional inspection, appearance inspection, pressure-related testing and final inspection.

Finished products are inspected according to the agreed product specifications and quality requirements before shipment.

Yes. We can provide relevant product specifications, technical data and factory inspection or test reports according to the product and customer requirements.

For specific projects requiring additional verification, third-party testing can also be discussed according to the required test standard.

Yes. Batch/Lot identification can be used to support production traceability. Depending on the product and order requirements, relevant production and inspection records can be linked to the corresponding batch.

This helps customers identify production information and investigate quality issues when necessary.

We review quality claims based on the product specification, application conditions, batch/lot information, inspection records, photos, videos and, where necessary, returned samples or further testing.

Our objective is to identify the root cause and provide a reasonable solution for verified manufacturing or material-related issues.

Warranty conditions depend on the product and the agreed order specifications.

Generally, verified manufacturing or material defects are covered according to the agreed warranty terms. Normal wear and tear, improper installation, misuse, unsuitable application conditions and operation outside the agreed specifications are not considered manufacturing defects.

The specific warranty period and conditions can be confirmed before order placement.

 Yes. We support customer-specific hose marking for qualified OEM and private-label projects.

Depending on the product and production requirements, marking may include brand name, hose specification, working pressure, applicable standard, production information and other agreed information.

Yes. Depending on technical feasibility and order quantity, we can discuss customized requirements including hose construction, size, working pressure, cover color, hose marking, packaging and other product specifications.

Yes. We support customized packaging and labeling for distributors, importers and OEM customers.

Depending on the product, options may include hose marking, labels, nylon belts, transparent PVC wrapping, cartons, pallets and other agreed packaging solutions.

Yes. Samples can be provided for product evaluation before bulk production.

Sample preparation time depends on whether the required product is a standard item or a customized specification.

MOQ depends on the hose type, size, construction, customization requirements and production schedule.

For standard products, we can discuss flexible quantities according to customer requirements. Please send us the product specifications and required quantity for a specific MOQ.

Lead time depends on product type, specifications, order quantity, raw material availability and production schedule.

For repeat orders with confirmed specifications, we provide a production schedule before order confirmation. For customized products, lead time will be confirmed after reviewing the technical requirements.

Yes. Depending on product dimensions, weight, packaging and order quantity, different hose types and sizes can be combined in the same container.

Our team can help optimize the loading plan according to the customer's product mix and container requirements.