Main Types of External Coating:

 FBE, 2FBE, 2PE, 3PE, 2PP, 3PP

Diameter: 219-1422mm(8.6-56in)
Wall thickness: 6.4~60mm(0.25-2.36in)
Length: 8-13m

Standards:

（1）Fusion Bonded Epoxy Coating (FBE)：
CAN/CSAZ245-20-M92
SY/T315-97
Q/SY XQ9-2003
（2）3-layers Polyethylene Coating (3PE)：
SY/T0413-2003
Q/SY XQ 8-2003
DIN 30670
Q/SY JS 0020-2003
DEP 31.40.30.31
CAN/CAS-Z245.21-M98
Q/SY GJX 0106-2007
GB/T23257-2009
（3）3-layers Polypropylene Coating ( 3PP)：
DEP31.40.30.31-PE/PP, 

DIN 30678