Blow molding tools are also called hollow blow molding, a rapidly developing plastic processing method. The blow molding process was used to produce low-density polyethylene vials during the Second World War. In the late 1950s, with the birth of high-density polyethylene and the development of blow molding machines, blow molding technology was widely used. The volume of hollow containers can reach thousands of liters, and some production has been controlled by computers. Plastics suitable for blow molding include polyethylene, polyvinyl chloride, polypropylene, polyester, etc. The resulting hollow containers are widely used as industrial packaging containers. According to the method of making the parison, blow molding can be divided into extrusion blow molding and injection blow molding, and newly developed multilayer blow molding and stretch blow molding.
Generally, people's daily necessities such as bottles, jars, baby products, sports products, etc.
The commonly used materials are: S136 1.3343 1.2344 H13 P20 NAK80 440 ASP23 and other mold steel. Mold Core,Blow Mold Cores,Blow Mold Cavities,Mold Spares Parts Dayue Seiko Technology (Dongguan) Co., Limited , https://www.dayuechn.com
Brass Ball Valve for gas
Size: 1/2 to 4 inch
Brand: OEM for you
Packing: 1PC/poly bag. 10PCS/white inner box
The followings will interest you greatly.
Forged ball valve, High quality Brass material
NBR seal ring
Handle in plastic.
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6. 24 hours response
Payment: L/C at singht or T/T 30% advance, the balance by T/T before ship
Delivery: The seller will send the goods in 30 days after buyer confirm the order
Packing: Each piece wrapped in a Poly/cloth/bubble bag, covered with carton case.
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They are generally composed of front Mold Inserts, rear mold inserts, inserts, threaded cores, molar cores, cavities, dental shafts, dental rods, guide post guide sleeves, gate sleeves, sliders, etc.