中文免费不卡Av,久久高清超碰av热热久久,中文字幕人妻在线视频分类,精品熟女少妇aⅴ免费狠狠,亚洲综合五月天久久伊人,无码在线看一级片,中文字幕一本高清不卡,亚洲欧美一区二区国产综合,欧美成人亚洲激情

 



New product development

1. low melt point wax series
Our company is developing the low melt point wax series three species.
Technique specification is as follows:
Item Model No.
35# 40# 5#
Whole refinement Half refinement Whole refinement Half refinement Whosle refinement Half refinement
Drop point°C 35±1 35±1 40±1 40±1 45±1 45±1
Oil contain% < 0.50 < 1.00 < 0.50 < 1.00 < 0.50 < 1.00
Penetration25°C 1/10mm  20-25 25-30  20-25  25-30  20-25   25-30
Mechanic impurnies  Have no Have no  Have no  Have no  Have no Have no 
Water-soluble
Acid-base 
 Have no Have no   Have no Have no  Have no  Have no 

2 .phase change energy storage wax series
Phase change energy storge wax is the main composition for new building reunite material,having solid-liquid change mutually,change the latent heat mutually big,change the area of temperature marrow,the physics chemistry function is stable,being not poisonous to harm to wait the characteristic to the human body.

3.new safe valve for boiler
Our company is developing new safe valve for boiler,the safe valve have exceed provision temperature or exceed provision pressure report to the police and open the valve two kinds result.

Fushun Yongning Industry Co., Ltd . Address:No.15 Guanwei Line, Lanshan Industrial Park (High?tech Zone), Dongzhou District, Fushun, Liaoning, China
Tel:86-24-54011821 E-mail:ningliu@ynwax.com post:113008