Quality Assessment:
Our company emphasized highly on the purchasing of the raw material. The main material EPDM of the gasket is purchased fromGermanyLanxess， \Lions\ Dupont \ DOW, U.S.A and Mitsui Japan. Our producing procedures, from purchasing, collecting & formulating raw materials to smelting & refining, from testing, cooling to shaping, from cutting-off, examining to packing, all abide by the standards under ISO9001.
The technological standard of our gasket has been well-received by a lot of recognized ship companies such as BV, ABS, CCS and etc. Our company had been approved by China CCS ISO9001:2000 Quality system.

Items			Specification
External dimension			Comply with HG/T3090
Tolerance	Size tolerance		Comply with GB/T 3672.1
	Size tolerance		Comply with GB/T 3672.2
Firmness in joints			Firm joints;mo cracks when bending
Elastic stiffness			≥10Mpa
Elastomers-tension modulus			≥350%
Elastic strength 100%			≥2.5Mpa
Tear strength			≥40KN/m
Hardness shore A			70±5°
Stiffness temperature			≤-50℃
Surface ozonecracking(density 100PPhm,23℃*48h，Elastic 20%)			No cracking
Ageing in hot air（100℃*70h）		Elastic strength modulus	±20%
		Tear strengh modulus	±20%
		Hardness modulus	+5°
Gasket ability in rain,wind and air			Comply with GB/T7392