Pipe Tensioner

8,285 Pipe Tensioner

results from

184 suppliers

Price: -
Min. Order under: Unit(s)
Supplier type:

Tensioner for Pipe Laying Vessels in Stock

US$ 300000-500000 / Set

Min. Order:1 Set

Click here to send inquiry

  • After-sales Service: Guide Installation and Commissioning on Site
  • Warranty: 12 Months
  • Od Diameter: 4'' to 60''
  • Working Load: 1 Ton-300 Ton
  • Performance: Endure All Kind of Sea Conditions
  • Maintenance: Low Cost

Sek-1632 Hydraulic Tensioner for Effective HVAC Pipe Installation

US$ 330 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Certification: RoHS, ISO, CE
  • Condition: New
  • Automatic Grade: Semi-Automatic
  • Usage: Petroleum, Construction, Metallurgy
  • Type: Hydraulic Cutting Tools
  • Warranty: Confirm with The Supplier

Manufacture Manual New Product Plastic Welding Machine Electrofusion Pipe Fitting Tensioner 160mm

US$ 111-116 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Welding
  • Cooling Way: Air Cooling
  • Control: Manual
  • Style: Handheld
  • Model: 160
  • Range: 63-160

Hand Steel Steel Banding Metal Strap Crimping Tool Manual Strapping Tool Tensioner

US$ 25-30 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • After-sales Service: One Year Warranty
  • Warranty: One Year Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Manual

13-19mm Pet/PP Strap Hand Strapping Tool Manual Plastic Strapping Tensioner (B310)

US$ 10-12 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • After-sales Service: Three Month Warranty
  • Warranty: Three Month Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual

Manual Plastic (Poly) Strap Tensioner for Boxes and Pallets

US$ 10-15 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • After-sales Service: Three Month Warranty
  • Warranty: Three Month Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets or Steel Coils
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Manual

Composite Cord Strap, Woven Cord Strap Strapping Band Tensioner (CT 32)

US$ 58-65 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • After-sales Service: Three Month Warranty
  • Warranty: Three Month Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Packaging
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual

Hand Manual Steel Strapping Tensioner 32mm (SKL-32)

US$ 105-120 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Barrels,Steel Coil,Steel Paltes
  • Strapping Material: Strip
  • Packaging: Barrel
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Poly Strapping Tensioner for 3/8in. ~ 3/4in (P116)

US$ 11-15 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Light Duty Poly Strap Tensioner (B315)

US$ 10-12 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • After-sales Service: Three Month Warranty
  • Warranty: Three Month Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Cartons
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Manual

Economical Tensioner for 12-19mm PP & Pet Strapping (B311)

US$ 11-15 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Strapping Tensioner
  • Strapping Material: PP/Pet Strap
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Cable Clamp Tightening Tool Wire Rope Clamp Wire Rope Tensioner Manual Wire Rope Ratchet Cable Tensioner

US$ 9.9-11.9 / Piece

Min. Order:100 Pieces

Click here to send inquiry

  • Material: Stainless Steel
  • Usage: Heavy Duty Clamp, Pipe Clamp, Glass Clamp
  • Standard: Standard
  • Condition: New
  • OEM Service: Available
  • Available: Global

Pneumatic Tensioner Cord Strapping Tensioner

US$ 500-550 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Hair Care Products, Cosmetics, Skin Care Products
  • Strapping Material: Lashing,Cord Strap,Composite Strap,Plastic Strap
  • Packaging: Cartons
  • Automatic Grade: Semi-Automatic
  • Strapping Mode: Buckling Type
  • Driven Type: Pneumatic

Pneumatic Tensioner for Woven Strap, Cord Strapping for Maximum 40mm with Great Tension Force

US$ 400-500 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • After-sales Service: Three Months Warranty
  • Warranty: Three Months Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Fiber Cord Strap Tensioner Tool
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Manual

Factory Direct Manual Cord Strapping Tensioner Red Color

US$ 15-18 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • After-sales Service: Three Months Warranty
  • Warranty: Three Months Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Plastic Cord Strap Strapping Tool
  • Strapping Material: PP/Pet Strap
  • Packaging: Cartons
  • Automatic Grade: Manual

Pneumatic Combination Tensioner for Steel Strapping

US$ 180-200 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Semi-Automatic
  • Strapping Mode: Welding Type
  • Driven Type: Pneumatic

Manual Handle Strap Tensioner for Cordstrap, Composite Strap

US$ 11-15 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Semi-Automatic
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Heavy Duty Poly Strap PP/Pet Strapping Tensioner (B318)

US$ 30-35 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Cartons
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Hand Pet PP Strapping Tensioner

US$ 30-35 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Cartons,Pallets, Packaging
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Cord Strap PP Pet Manual Hand Strapping Tensioner

US$ 13-18 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • After-sales Service: Three Months Warranty
  • Warranty: Three Months Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual

Battery Powered Handheld Cord Composite Lashing Strip Strapping Tensioner and Cutter for Width 25-40mm

US$ 550-650 / Piece

Min. Order:5 Pieces

Click here to send inquiry

  • After-sales Service: One Year Warranty
  • Warranty: One Year Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks
  • Strapping Material: Cordstrap Composite Polyester
  • Packaging: Cartons
  • Automatic Grade: Battery Operated

Plastic Strapping Windlass Tensioner (B310)

US$ 11-13 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Cartons
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Economical Feed Wheel Tensioner for 13-19mm Steel Strap (HB810)

US$ 25-30 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Packaging Machine
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Smart Manual Fiber Strap Strapping Tensioner

US$ 60-70 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Manual Steel Strapping Band Tool Strapping Tensioner

US$ 35-40 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets or Steel Coils
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Cord Strap Automatic Pet PP Belt Hand-Held Strapping Banding Tool Tensioner for Lashing

US$ 500-550 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Hair Care Products, Cosmetics, Skin Care Products
  • Strapping Material: Lashing,Cord Strap,Composite Strap,Plastic Strap
  • Packaging: Cartons
  • Automatic Grade: Semi-Automatic
  • Strapping Mode: Buckling Type
  • Driven Type: Pneumatic

Metal Strapping Tools, Tensioner and Sealer, Strapping Band Set

US$ 35-45 / Piece

Min. Order:50 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Semi-Automatic
  • Strapping Mode: Welding Type
  • Driven Type: Electric

Cord Strap Automatic Pet PP Belt T30 Hand-Held Strapping Banding Tool Tensioner for Lashing

US$ 500-550 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Hair Care Products, Cosmetics, Skin Care Products
  • Strapping Material: Lashing,Cord Strap,Composite Strap,Plastic Strap
  • Packaging: Cartons
  • Automatic Grade: Semi-Automatic
  • Strapping Mode: Buckling Type
  • Driven Type: Pneumatic

Pet Strap Manual Tightening Strapping Tensioner (B311)

US$ 11-15 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Strapping Tensioner
  • Strapping Material: PP/Pet Strap
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Premium Windlass Cord Strapping Tensioner (JPQ19)

US$ 15-20 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Wooden Case or Pallets
  • Strapping Material: Cord Strap
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Welding Type
  • Driven Type: Pneumatic

Cord, Composite Polyester Strap Tensioners

US$ 15-20 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Semi-Automatic
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Pneumatic Forward and Reverse Steel Belt Strapping Tensioner (KT-32L)

US$ 260-300 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • After-sales Service: One Year Warranty
  • Warranty: One Year Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Strip
  • Packaging: Cartons
  • Automatic Grade: Semi-Automatic

Cord Strapping Tensioner, Pneumatic Cord Strap Tensioner

US$ 400-450 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • After-sales Service: One Year Warranty
  • Warranty: One Year Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Semi-Automatic

Manual Hand Plastic Strapping Tensioner for Ployester Pet Strap (B311)

US$ 11-15 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets, Bricks, Cloths and etc.
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Battery Powered Cord Strapping Tensioner Used for Cord Strapping for 3/4", 1", and 1 1/4” (woven and composite) , or Lashing 1 1/4" and 1 1/2"

US$ 700-1000 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • After-sales Service: One Year Warranty
  • Warranty: One Year Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks
  • Strapping Material: Cordstrap Composite Polyester
  • Packaging: Cartons
  • Automatic Grade: Battery Operated

Manual Hand Plastic Pet Ratchet Strapping Tensioner for Ployester Pet Strap with CE

US$ 11-15 / Piece

Min. Order:1 Piece

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets, Bricks, Cloths and etc.
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Hand Manual Strapping for Polyester Strip Strapping Tensioner for 19mm PP/Pet Strap

US$ 9-12 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • After-sales Service: Three Months Warranty
  • Warranty: Three Months Warranty
  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual

Tensioner for Wide Cord Strapping Jpq25

US$ 13-15 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Pallets,Bricks,Cloths and etc.
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Large Heavy Duty Tensioner for 19-40mm Cord Strapping (available for 25-50mm strap)

US$ 60-70 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Cartons, Pallets, Packaging
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual

Heavy Duty Pet Tensioner (B318)

US$ 30-35 / Piece

Min. Order:10 Pieces

Click here to send inquiry

  • Application: Waste Paper, Steel Pipe, Steel Coil, Household Chemicals, Medical, Oil, Hair Care Products, Cosmetics, Skin Care Products, Carbonated Drinks, Milk, Yogurt, Pure Water, Alcoholic Beverages, Fruit Drinks, Cartons
  • Strapping Material: Plastic Tape
  • Packaging: Cartons
  • Automatic Grade: Manual
  • Strapping Mode: Buckling Type
  • Driven Type: Manual
1 2 3 4 5 6 7 8 ... 20