For formats that wrap the fruit from the PVC pipes of Miami is used or scrap PVC pipe ends cutting people. Diameter: 4 inches long and 8 inches, then notch the pipe mouth, a trench width 2 cm, depth 4 cm rail using two 2-foot-long wooden front rail end notch of wood, is a similar Pang Pang catapult 2 cm, depth 10 cm, then remove the wood that came late, or notch nail, attach to the PVC pipe, PVC pipe mouth meets the intended notch. By giving wood a notch hold point corresponds to the target pipe notching. (view photos) at the Pang of wood. 1.8 cm thick wood size height 4 cm long, 1 ft, or enough for a tongue-wag by the late wood top using rubber slingshots binds to the late wood top notch so that the tongue of wood infected with the bottom edge of the notch target PVC pipe. The bottom end into the notch of the PVC pipe. The wooden ends a long rope made of tongue, 2-4 m intended use time jerking. While the late wood clock, next to the PVC pipe using PVC pipe diameter 1 inch rail wear stick for so long long wood case to wrap fruit is high.Time use, remove paper, newspaper, page 1, segmented equal. Then remove the paper books and then segment the magma made a cylinder to wear in PVC pipe, and then remove the small rubber band line fasteners that PVC pipe above the mouth, tongue, wood that PVC pipe notching. Fold the end of newspapers, closed mouth, PVC pipe, wood end grips are time fruit wrap. Remove the PVC pipe with paper books in there mouth and elastic tubing into the end cap pull the fruit on top of tongue makes the end tongue of wood on the bottom to push the tire to stick with paper fasteners stem fruits that we will. Rain is wet, paper plaikradat below will auto convergence. And you're done.For the fruit, wrap is made from a PVC pipe using the rest that does say that investing a few baht. Specifically, the prototype machine did not invest because they took all of the invention, and today he still.History of PVC pipe.PVC compound. was first discovered in the Church at sottuanrot, and then. Beginning it was because a group of scientists. To study the reaction of new type organic galleries (Vinyl Chloride, C2H3CL) that we've invented and found a strange phenomenon. When this need is sunlight, the occurrence of solids at the bottom of the test tube white. In fact, this phenomenon has a name, the chemical Polymerization to occur, which makes a new type of plastic Polyvinyl Chloride compound. scientists have found that the new compound does not react with the chemicals and the key is not to destroy it but due to PVC. Is there any opposition to the change of properties makes it hard to use for this reason, the development of PVC compound, so go away.Even had debris from the 1920s to research about PVC compound. Again in Europe and North America in this period have been adopted: PVC. used for serious benefit especially in Germany in 1930, scrap scientists and engineers. The Germans have led the development and production of PVC pipe. A limited number of applications released these pipes still Prague is effective rule until as long as today, at the end of World War II, the German aerial attack heavy-duty cities destroyed, but the public still survive by living according to the fallen-fo.Kaphang of the building. What is the big problem is that the system of water distribution and drainage that were destroyed. The crisis intensified when another Allied attack, Tuscany Ru and the Saar, a source of iron and other minerals that are used in the production of pipes, to solve these busy German scientists and engineers worldwide use the PVC. Founded established for the first time.The current pipe PVC. An important role in the global market, from statistics to datho PVC in the United States in 1976; it appears that the number of the production to 1.5 billion pounds. Per year Standard PVC pipe. In the United States have been established in 1940 by The American Society for Testing debris and Materials (ASTM).สำหรับประเทศไทยนั้น ท่อ พี.วี.ซี. เริ่มเป็นที่รู้จักและใช้กันเมื่อประมาณ 20 ปีที่ผ่านมา และปัจจุบันกำลังเป็นที่รู้จักและใช้การอย่างแพร่หลาย จนสำนักงานมาตรฐานผลิตภัณฑ์อุตสาหกรรม กระทรวงอุตสาหกรรม ได้กำหนดมาตรฐาน ท่อ พี.วี.ซี. และอุปกรณ์ต่อท่อ พี.วี.ซี. ขึ้นโดยแบ่งแยกสีตามการใช้งาน เช่น มาตรฐานผลิตภัณฑ์อุตสาหกรรมท่อ พี.วี.ซี. แข็งสำหรับใช้เป็นท่อร้อยสายไฟฟ้า สายโทรศัพท์ (มอก. 216-2520) กำหนด เป็นท่อสีเหลืองอ่อน (Primerose) มาตรฐานผลิตภัณฑ์อุตสาหกรรมท่อ พี.วี.ซี. แข็งสำหรับใช้เป็นท่อน้ำดื่ม (มอก. 17-2523) กำหนดเป็นท่อสีน้ำเงิน (Arctic Blue) มาตรฐานผลิตภัณฑ์อุตสาหกรรมท่อ พี.วี.ซี. แข็งสำหรับใช้ในงานอุตสาหกรรมและชลประทาน (มอก. …..) กำหนดเป็นสีเท่า เป็นต้น นอกจากนี้ยังมีมาตรฐานผลิตภัณฑ์อุปกรณ์สำหรับต้นท่อ ซึ่งกำหนดสีตามท่อ พี.วี.ซี. สำหรับใช้งานต่าง ๆ กัน
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