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Dunlop 20B-1 BS Simplex Stainless Steel Half Link 1.1/4 Inch PitchDunlop Roller chains are manufactured to internationally recognised standards. European standards refer to the ISO R 606 1982 (DIN 8187) while American standards refer to ANSI (DIN 8188). Roller chains are available in simplex ( 1), duplex ( 2) and triplex ( 3) and in a varying range of materials and plating options, such as stainless steel (SS), nickel plated (NP) and zinc plated (ZP). Attachments are also available along with connecting links (CL)
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Best in 7 days
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4.3 ★★★★★
Based on 1098 reviews
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Product Reviews
★★★★★ 5
Great resource!
Format: Hardcover
Excellent source for reference.
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Reviewed in the United States on October 4, 2025
★★★★★ 5
A good update for a fifty year geologist
Format: Hardcover
I wanted an update on plate tectonics as I was a geologist for 50 years and it was a theory back when I was in school particularly on mountain building I have been impressed so far I am about half way through the book and the book does a fine job of laying a solid foundation of physics and geochemistry that are the basics for the remainder of the book
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Reviewed in the United States on March 23, 2025
★★★★★ 4
An excellent introduction to plate tectonics
Format: Kindle
My rating is 4.5 stars. I dinged the book because I wanted more about geobiological evidence for and against plate tectonics, and because it didn't mention other global tectonics, such as single-lid tectonics. Read Robert Stern's article in the May 2025 issue of the GSA bulletin.
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Reviewed in the United States on May 17, 2025
★★★★★ 5
This book must be in universities libraries worldwide.
Format: Hardcover
This is an updated book on the basic principles of Plate Tectonics, superbly illustrated, suitable for graduation courses on Geology.
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Reviewed in the United States on July 26, 2025
★★★★★ 3
Arrived damaged
Format: Hardcover, Format: Hardcover
Arrived a day early but also arrived damaged. Got this as a reference book before starting college, kinda sucks that it's already damaged.
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Reviewed in the United States on August 3, 2025
