Plastic pipes may be adjustable sizing sleeve sizing sleeve, including copper sleeve, wherein: at one end of the axial copper sleeve has at least three suppliers of calibration sleeve slits, slit in the circumferential average copper copper sleeve sets; copper sleeve is opened there is a collar on one end of the slot at the other end of the copper sleeve stretching device has a connecting collar. Collar and copper have their own set of ramps fit. Copper sleeve gap of curves or lines or polylines. Stretching device by the connecting rod and turn the handle sleeve ring sizing sleeve constituting manufacturers, screw terminal connection screw hole on the cover ring on the lever. The utility model has the advantage in the production process can be based on production requirements, time to change the inner diameter of the sizing sleeve, change the thickness and replacement demand for plastic raw materials for processing when the pipe. Our design and production of vacuum sizing sleeve according to different plastic molding characteristics can be divided into: direct cooling curtain, disc type PPR pipe sizing sleeve, spiral tank type, the user can, depending on the diameter of the production speed product selection setting mode structure. Achieve higher production speeds and the best product appearance. The above picture shows that our production of copper sizing sleeve with different specifications, for your reference! ! ! ! HDPE pipe sizing sleeve can be used with wet Import sizing sleeve. Import wet calibration sleeve has a conical mold toward a strong cooling inlet. Immediately after the entrance is a glass width can be adjusted, it can wet the entire surface of the pipe. Between the tube and the sizing sleeve role similar water film lubricant to prevent the plastic bonding surface sizing sleeve. Dry import sizing sleeve for large diameter pipes. Since introducing the pipe end to avoid contact with the water, you can get excellent surface quality. High-speed calibration sleeve, sizing sleeve, day Nobuyasu provided by Qingdao day letter Thai Plastic Machinery Co., Qingdao day letter Thai Plastic Machinery Co., Ltd. (www.qdtianxintai.com) (www.txt-extruder.com) strong, credible, in Qingdao, Shandong granulator industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Tition Taihe you hand into the brilliant, for a better future!