Improve demand of people to drinking water mass and drinking water transportation pipeline also more and more highly with development of our country building industry and the people quality of life ceaselessness. Be that tubing high strength , clean hygiene nothing rustiness , the insecure reliable usage linking up require that the steel that the company sells moulds compound tube (English abbreviation to conveying water satisfy building industry: SP) develops the pipe fitting having produced hygiene level steel moulding the compound tubing successfully according to up-to-date advanced technology of abroad/ , that one kind tubing being inside compound layer of plastic material in the steel tube but has had simultaneously plastic pipeline and zinc-coated steel tube is able to bear function of high pressure , high strength , shock resistance , is height mass , has the characteristic , the bestThe material combination bears fruit , is one kind of very good synthetical function compound tubing, be the product success's turn to develop the difficult problem producing thorough Huang Shui  " who has resolved "rust and pipeline fouling block etc., water supply mass the drinking water block of wood is ensured by the drinking water having contaminated two time, from fundamental guarantee. Be that building industry has provided the be a new model most ideal water supply tubing , be a twenty-first century country moderate prosperity construction of housing recommendation product , be also a new model in conformity with the international practice product

Properties of products bond strength
steel and mould between the curved
function of bond strength N/cm2 caliber
is equal or less than 50 mm lining
moulding a steel tube crack happened
after 20' curved queens, steel and mould
between do not happen being away from
tier of phenomena. Flatten function
caliber greater than 50 mms lining
moulding a steel tube crack happened as a
 result of flattening the day afer
tomorrow, steel and mould between do not
happen being away from tier of phenomena.
 The hygiene function inner lining silent
 stock tube hygiene function accords with
 the GB/T17219 request. But that hot
waterpipe function hot water moulds
compound tube characteristic property
lining moulding the compound steel tube
combining with intensity greater than 1.0
 MPa100N/cm2 steel between using lining
to mould the steel tube steel and
moulding is to adopt peculiar method to
be accomplished because average
zinc-coated steel forges and casts iron
and accords with a national standard's to
 mould compound for waterpipe, suck also
tradition zinc-coated steel tube and
average silent stock tube merit, have
avoided the defect that they there exist
in each's institute. Be able to bear
chemistry corrosion high performanceZinc-coated steel manages Neibi lining moulding the tube (PE ,
PP , PEX etc.) , have fine acidproof , be able to bear an
alkali , be able to bear salt characteristic property.
Extremely nice machinery intensity steel moulds the compound
tube having good machinery no equal with tradition zinc plating
 tube acting as by force , has extremely nice capability of
adapting self to pounding , to bending , controlling affair and
 other outside force. Fine hygiene function inner lining silent
 stock tube (PE , PP , PEX etc.), can not bring about to the
medium conveying contaminating , tradition galvanizes in being
able to avoid waterworks being in charge of "Huang Shui " abuse
 , guarantee water quality hygiene. Strenuously small overcast
silent stock tube Neibi is relatively glossy to medium , whose
rough modulus is 0.009 only , the resistance being on the move
is very small to medium , driving force therefore decrease
wastes, completely eradicate tube wall phenomenon such as
encrusting , being rusted by. Working temperatureIn 10 ~C, to 90 ~C, the
temperature range inner is put
 into use. Installation is
simple and convenient be
qualified for have a
speciality to seal off a
sealing up , be able to bear
the rust-eaten pipe fitting,
tradition installation is
simple rapid, economy is
reliable. Life time changes
life time unnecessarily in 50
, may reduce the cost being
maintained by large margins.